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(Click for frequent words.) 67 particulate emission 67 urea injection 65 evaporative emission 64 unburned hydrocarbons 64 particulate emissions 63 nitrogen oxide NOx emissions 62 aftertreatment 62 diesel particulate filter DPF 61 particulate matter emissions 61 unburnt hydrocarbons 61 Particulate emissions 61 Purifier TM 61 exhaust emissions 61 NOX emissions 60 thermal oxidizers 60 harmful tailpipe emissions 59 diesel particulate 59 soot particulates 59 diesel particulate filter 59 particulate filter 59 harmful particulates 59 diesel oxidation catalyst 59 ULEV II 59 nitrogen oxides NOx 59 exhaust emission 58 aftertreatment systems 58 SOx emissions 58 tailpipe exhaust 58 hydrocarbons carbon monoxide 58 NOx emissions 58 charcoal canister 58 ULEV 58 Particulate Matter PM 58 NOx emission 58 exhaust aftertreatment 58 SCR aftertreatment 58 hydrocarbons HC 58 smog forming nitrogen oxides 58 aqueous urea solution 58 particle filters 58 unburnt fuel 58 particulate matter emitted 58 particulate filters 57 Emission Vehicle SULEV 57 tailpipe pollutants 57 SULEV 57 AdBlue injection 57 Cummins Particulate Filter 57 crankcase ventilation 57 Diesel particulate filters 57 Exhaust Gas Recirculation 57 diesel particulates 57 Sulfur compounds 57 harmful gasses 57 harmful byproducts 57 flammable solvents 57 Volatile Organic Compounds VOCs 57 nitrogen oxides NOx emissions 57 Volatile Organic Compounds 56 cooled Exhaust 56 nitrogen oxide NOX 56 catalytic convertor 56 nitrogen oxide emission 56 reduce NOx emissions 56 particulate matter soot 56 Tailpipe emissions 56 VOC emissions 56 Partial Zero Emissions Vehicle 56 tailpipe emissions 56 SCR catalytic converter 56 PCV valve 56 sulfur dioxides 56 Super Ultra Low 56 Diesel Particulate Filter DPF 56 Selective Catalytic Reduction 56 Low Emissions Vehicle 56 capless fuel 56 nonroad diesel 56 Euro5 emissions 56 low NOx burners 56 NOx nitrogen oxide 56 tailpipe emission 55 Turbocharging 55 HCCI combustion 55 PZEV 55 combustion 55 MaxxForce Advanced EGR 55 compressed hydrogen 55 NOx 55 rotary vane 55 exhaust gasses 55 particulate traps 55 Ultra Low Emission Vehicle 55 gas recirculation 55 VOCs 55 de ionized 55 harmless nitrogen 55 Emission Vehicle 55 fume extraction 55 oxidation catalytic converter 55 combustors 55 detergency 55 coolant hoses 55 nitrous oxides 55 regenerative thermal oxidizer 55 MACT standards 55 EGR valve 55 smog forming emissions 55 VALVETRONIC 55 anode rod 55 injector nozzles 55 harmful contaminants 55 CO -2 emissions 55 oxidation catalyst 55 Partial Zero Emission Vehicle 55 fuel injector 55 Ultra Low Emissions 55 reduces NOx emissions 55 Nitrogen Oxide NOx 55 SCR selective catalytic 55 emit fumes 55 BMW Valvetronic 55 SCR Selective Catalytic Reduction 54 emit carbon monoxide 54 demineralized water 54 smog forming pollutants 54 depressurizes 54 Emissions Vehicle SULEV 54 refrigerant leakage 54 evaporative 54 tailpipe 54 sulfur oxide SOx 54 oxidizing catalytic converter 54 Replacing clogged 54 DPFS 54 particulate contaminants 54 Variable Cylinder Management 54 minute gpm 54 CRDi diesel engine 54 Diesel Particulate Filter 54 petrodiesel 54 deisel 54 particulate pollutants 54 inlet manifold 54 particulate matter sulfur dioxide 54 #g CO2/km [001] 54 conventional combustion engine 54 harmful vapors 54 actuated valves 54 Direct Injection Spark Ignition 54 combustion gases 54 Sulfur Dioxide SO2 54 pollutant emissions 54 Volatile Organic Compound VOC 54 Gas Recirculation EGR 54 LEV II 54 HFC #a 54 torque multiplication 54 hydrofluorocarbon HFC 54 gaseous hydrogen 54 smog forming pollution 54 closed crankcase ventilation 54 Nitrogen oxide 54 diesel particulate matter 54 DPF Diesel Particulate Filter 54 cetane rating 54 VOCs volatile organic compounds 53 Nitrogen NOx 53 Nitrogen Oxide 53 AT PZEV 53 city/# highway mpg 53 Global Warming Potential GWP 53 intake camshaft 53 particulate matter PM 53 CARB 53 poppet valves 53 cooled EGR 53 city/# hwy 53 pneumatic valves 53 diesel particulate filters 53 Aftertreatment 53 ECU remap 53 oxidising catalytic converter 53 SAE J# [002] 53 Emissions Vehicle 53 #yf 53 Nitrogen Oxides 53 diesel aftertreatment 53 nitrogen oxides sulfur oxides 53 variable camshaft timing 53 air pollutants emitted 53 Ti VCT 53 Ultra Low Emissions Vehicle 53 conventional internal combustion 53 inerting 53 aqueous urea 53 DeNOx 53 transverse mounted 53 variable valve 53 capless fuel filler 53 particulate soot 53 Carbon Monoxide CO 53 blowdown drum 53 smog forming 53 volatile organic compounds 53 Greenhouse gasses 53 stoichiometric 53 JP8 jet fuel 53 aftermarket exhaust 53 ASTM specifications 53 fuel injectors 53 TxLED 53 shredder residue 53 thermodynamic efficiency 53 carbon monoxide nitrogen oxide 53 balancer shaft 53 Methylene Chloride 53 CO -2 53 g bhp hr 53 Hydrogen Sulfide 52 #bar [002] 52 Volatile Organic Compounds VOC 52 Coolants 52 exothermic reaction 52 diesel 52 EGR valves 52 picocurie 52 hydraulic accumulator 52 rear defroster 52 Volatile Organic Compound 52 kilowatt microturbine 52 variable cam phasing 52 Coolant 52 HCCI engine 52 offgas 52 octane enhancer 52 exhaust hoods 52 TDCi diesel 52 TDCi engine 52 Underinflated tires 52 sulfur oxide 52 zero tailpipe emission 52 particulates 52 oxidation catalysts 52 Honda i VTEC 52 ULEV II emissions 52 NOx SOx 52 oxidiser 52 E# flex 52 gasoline vapors 52 Small Pickup Truck 52 Variable Geometry Turbocharger 52 antifreeze coolant 52 Diesel Particulate Filters 52 nitrogen oxide NOx 52 odorless colorless poisonous 52 stringent emission 52 BluePerformance 52 Piezo injectors 52 #.#L DOHC 52 mercaptans 52 lb hr 52 duct leakage 52 Delphi Multec 52 cetane 52 sintered metal 52 CO2emissions 52 emmissions 52 colorless odorless poisonous 52 kW/# hp [002] 52 hydrogen chloride 52 centrifugal blower 52 screw compressor 52 EGR cooler 52 Advanced EGR 52 ionic contamination 52 hydrogen combustion engine 52 sulfer 52 hazardous vapors 52 sodium metal halide 52 NOx aftertreatment 52 diesel particulate emissions 52 exhaust gases 52 water vapor permeability 52 cooling coils 52 gaseous pollutants 52 EGR exhaust gas 52 Emissions Vehicle AT PZEV 52 Methane CH4 52 sulfur oxides SOx 52 backwashing 51 Gasoline Direct Injection 51 HumiFilters 51 carbon dioxide nitrogen oxide 51 diesel particulate filters DPF 51 emission 51 compression ignition 51 SO2 emission 51 #LL [001] 51 VOC emission 51 Clogged filters 51 R #A refrigerant 51 Multec 51 combustion byproducts 51 carbon monoxide hydrocarbons 51 #.#L Ecotec 51 diesel exhaust 51 freon 51 dry sump 51 sulfur dioxide SO2 emissions 51 Antifreeze Coolant 51 outgas 51 particulate matter nitrogen oxides 51 fluorinated greenhouse gases 51 dioxide emissions 51 gaseous emissions 51 HCCI engines 51 particulate contamination 51 8 CYL 51 AdBlue tank 51 wet scrubber 51 smog forming nitrogen oxide 51 sulfur diesel fuel 51 Technology MACT 51 SKYACTIV G 51 scfm 51 removes impurities 51 TDI #bhp 51 bio diesels 51 DOHC V6 51 nitrogen NOx 51 AdBlue 51 cleanroom environments 51 sulfur dioxide SO2 nitrogen 51 hazardous liquids 51 nitrogen oxides 51 Particulate Matter 51 HFC refrigerants 51 twin turbocharger 51 cryogenic cooling 51 tractive effort 51 mercury sulfur dioxide 51 nitrogen NOx emissions 51 Selective Catalytic Reduction SCR 51 MZR CD 51 grease lubrication 51 condensable 51 SOHC engine 51 cam phasing 51 feedwater 51 SOx NOx 51 vaporisation 51 double VANOS 51 Zero Emission Vehicle ZEV 51 Ultra Low Sulfur Diesel 51 Valvetronic 51 diesel oxidation catalysts 51 extractables 51 antifreeze brake fluid 51 flapper valve 51 BlueTec 51 degasser 51 #.# liter Duratorq 51 #.# liter SOHC 51 mpg city/# highway 51 selective catalytic 51 hydrostatic transmission 51 spark ignition 51 BlueTec diesel 51 downsized turbocharged 51 VOCs volatile 51 exhaust silencer 51 magneto rheological 51 hybrid drivetrains 51 cylinder DOHC engine 51 Hydrogen Sulfide H2S 51 iVTEC 51 CFCs HCFCs 51 six speed Geartronic 51 R #a refrigerant 51 heptane 51 ultralow sulfur 51 Technology Partial Zero 51 Cummins ISB 51 ZEV 51 #g/km CO2 [002] 51 Sulfur Dioxide 51 crankcases 51 AFUE 51 turbodiesel engines 51 lubricity 51 Cummins Aftertreatment System 51 smokestack scrubbers 51 MaxxForce ® 51 TDCi diesel engine 51 Remy HVH 51 Low sulfur diesel 51 ventless 51 Smog Check 51 unburned hydrocarbons carbon monoxide 51 Duratec petrol 51 Westport HPDI 51 Variable Geometry 51 tailpipe CO2 emissions 51 BlueCool Truck 51 ATEX compliant 50 rotary valves 50 MQL 50 backpressure 50 filter cartridge 50 underinflated tires 50 airborne pollutant 50 ignition coils 50 emmisions 50 gas milage 50 halogenated 50 PGM FI 50 microGreen filter 50 liter Turbo Diesel 50 X5 #.#si 50 particulate filtration 50 inner fender 50 HEPA filtration 50 nitrous oxide NOx emissions 50 DiesOtto 50 pollutants emitted 50 venturi vacuum pumps 50 Port Fuel Injection 50 inlet valves 50 co2 emissions 50 emit #g/km 50 hazardous solvents 50 sulfur dioxide pollutant 50 ISX#.# 50 crossflow 50 variable valve lift 50 ASTM D# [001] 50 EtO 50 electric hybrid powertrain 50 Continuously Variable Transmission CVT 50 cylinder deactivation 50 flexfuel vehicles 50 tpy CO2e 50 RenDiesel fuel 50 Direct Injection 50 air cooled condenser 50 sulfur trioxide 50 electric cooktops 50 catalytic converter 50 OBD II 50 wire mesh filter 50 gas recirculation EGR 50 Board CARB 50 dual overhead camshaft 50 MultiJet II 50 #.#L GDI engine 50 #.#L FSI 50 DPF diesel particulate 50 #.#L Duratec 50 federally enforceable 50 cleanest diesels 50 #kWh battery 50 wetted parts 50 VOCs Volatile Organic Compounds 50 washer wiper 50 #hp #kW [001] 50 ISX# 50 vapor 50 diaphragm pump 50 XPH #TU 50 Diesel Exhaust Fluid 50 Variable valve 50 Refrigerant 50 Adblue 50 AB# mandates 50 air cooled condensers 50 emissions 50 Timing VVT 50 #MPG [002] 50 hydrochlorofluorocarbon 50 Flexible Fuel 50 belts hoses 50 EVAP 50 combustion chambers 50 DPFs 50 carburetion 50 venturi 50 EGR engines 50 Detroit Diesel BlueTec 50 Use hose nozzle 50 sealless 50 ECOTEC engine 50 EU4 emissions 50 #.# liter Ecotec 50 preheaters 50 VOC Volatile Organic Compounds 50 diesel engine 50 electrically driven 50 bioaerosol 50 combustor 50 multitronic continuously variable 50 nitrogen oxides particulate matter 50 flue gasses 50 PZEV Partial Zero Emissions 50 external Schottky diode 50 fuel tank inerting 50 carbon monoxide nitrogen oxides 50 R#a 50 reciprocating piston 50 hydrogen chloride HCl 50 produces #hp 50 EPA# 50 prevent misfueling 50 inlet valve 50 Sodium hypochlorite 50 Focus FCV 50 E# biofuel 50 overfill prevention 50 VVEL 50 amine scrubbing 50 sulfuric acid mist 50 nitrous oxide NOx 50 metal hydride 50 hydrogen peroxide H#O# 50 chassis dynamometer 50 frictional resistance 50 diesel particulate filters DPFs 50 refrigerant gases 50 Civic LX 50 coolant temp 50 carburettors 50 WVTR 50 hydraulic braking 50 MaxxForce ® brand 50 Golf Bluemotion 50 CO2 50 Hydronic 50 Pulstar TM 50 pump impeller 50 OBD II port 50 CFC refrigerants 50 unmodified diesel 50 octane booster 50 Cylinder deactivation 50 HFO #yf 50 turbo lag 50 feebates 50 ASTM D# [002] 49 capillary arrays 49 flammable gases 49 picoCuries 49 pleated filter 49 B5 biodiesel 49 exhaust duct 49 MIVEC 49 pollen filter 49 diesel engines 49 thermal oxidation 49 Pressurization 49 emit pollutants 49 heated windshield washer 49 #/#-mpg 49 Diesel Exhaust Fluid DEF 49 B# biodiesel fuel 49 variable geometry turbochargers 49 VVT i 49 cylinder turbocharged petrol 49 electrostatic filters 49 furnace air conditioner 49 longitudinally mounted 49 injector nozzle 49 smog forming gases 49 hydraulic pump 49 grease interceptor 49 sulfur oxides 49 sound deadening materials 49 preheating 49 Passat TDI 49 nitrogen oxide 49 degrease 49 methyl chloride 49 SF6 49 flow restrictor 49 exothermic 49 Genesis Coupe #.#T 49 PACCAR MX 49 Pressure washers 49 reductant 49 cleanest internal combustion 49 filter cartridges 49 aeration basin 49 Automatic transmissions 49 #.#L engine 49 MidRange 49 R#A refrigerant 49 biofuel blends 49 Distronic 49 iso octane 49 #V outlet 49 StabiliTrak electronic stability 49 city/# highway 49 vapor compression 49 refrigerant 49 spark plugs pistons 49 petrol powerplant 49 GDi 49 fume hoods 49 catalytic reforming 49 SAE #W 49 lubricating oils 49 Caterpillar C# 49 spokeswoman Cathy Milbourn 49 #hp #kW [003] 49 gypsum byproduct 49 carpet shampooers 49 filter housings 49 oxidizer 49 Hydrogen Sulphide 49 BlueTEC diesel 49 HDi diesel engines 49 #L/min 49 unvented 49 flux residues 49 TPMS sensors 49 transversely mounted 49 clutch facings 49 tankless heaters 49 VOC volatile 49 sulfur hexafluoride SF6 49 RO membrane 49 filters spark plugs 49 Aerators 49 Ford Econetic 49 X5 xDrive#d 49 Diesel Emission 49 ML# BlueTEC 49 evaporator coils 49 anaerobic lagoon 49 PZEVs 49 dry sump lubrication 49 denaturant 49 Cummins ISX 49 #MPa 49 aluminum intake manifold 49 emit sulfur dioxide 49 Hydrogen Internal Combustion 49 Isobutanol 49 injector needle 49 Ecoboost engine 49 spark arrestor 49 BMW X3 xDrive#d 49 HiPOx 49 intake plenum 49 regenerable 49 emis sions 49 mhd 49 sulfur dioxide SOx 49 HCNG 49 flammable hydrocarbons 49 respirable particulate matter 49 oxidisation 49 GreenChek manufactures 49 Ionic liquids 49 Vehicle Stability Assist 49 peristaltic pumps 49 Valvematic 49 hydraulic steering 49 Internal Combustion Engines 49 liter turbocharged Ecotec 49 6 CYL 49 leaky ducts 49 flammable vapors 49 TANCS 49 petrol V6 49 fume hood 49 electrohydraulic 49 Shock absorbers 49 Aqua Cleer 49 electro static 49 ceramic honeycomb 49 Carbon monoxide byproduct 49 T8 lamps 49 mpg city/# mpg highway/# 49 #.# liter TDI 49 Selec Terrain 49 Scuderi Engine 49 HDi diesel 49 Nitrogen oxide emissions 49 gases emitted 49 Low VOC 49 coolant leaks 49 desulfurizer 49 Fine particulates 49 dynamometers 49 normally aspirated engines 49 reactor coolant pump 49 trihalomethanes THMs 49 turbo diesel engine 49 RenDiesel ® 49 restricts airflow 49 unibody structure 49 glow plugs 49 #.#L TSI 49 PS TSI 49 flux vector 49 #.# liter CDTi 49 refrigerant leaks 49 Electronic Sequential 49 hydraulic fluids 49 sulfur dioxide particulate matter 49 checking faucet washers 49 electrochemical sensor 49 Bluetec diesel 49 drip pans 49 X3 #.#si 49 screw compressors 49 Module ECM 49 HDi diesel engine 49 selective catalytic reduction 49 horsepower V6 engine 49 HEPA filters 49 Hepa filter 49 hp/# Nm 49 Nitrogen dioxide 49 B# biodiesel blend 49 Vehicles FFVs 48 city/#.# highway 48 mounted transversely 48 Paccar MX 48 sacrificial anode 48 gph 48 #.#:# compression ratio [002] 48 NVH noise vibration harshness 48 RadMax ® 48 double overhead camshaft 48 Spark plugs 48 purification TOMI systems 48 nitrogen oxides carbon monoxide 48 optimum airflow 48 Edge Lincoln MKX 48 TFSI petrol 48 L/# km highway 48 regen braking 48 Hydra Matic #T# 48 #W# [010] 48 demineralised water 48 VOC volatile organic 48 Recirculation 48 liter #bhp [002] 48 haloacetic acid 48 recirculation 48 biturbo 48 variable geometry turbo 48 Polycyclic aromatic hydrocarbons 48 intake valve 48 Factory Demonstrator 48 Nitric acid 48 ozone particulate matter 48 turbocharged petrol 48 FlexiFuel 48 liter diesels 48 petrols 48 fluorocarbons 48 lambda sensors 48 V# TDI engine 48 lithium titanate batteries 48 exhaust 48 CO ₂ 48 cylinder twin turbo 48 PID controller 48 spokeswoman Phillippa Cannon 48 butyl ether 48 Carbon dioxide CO2 48 solenoid valves 48 siloxanes 48 volumetric efficiency 48 nonhybrid 48 nitrogen oxide emissions 48 naturally aspirated engines 48 Ecotec #.#L turbo 48 ozone depleting refrigerant 48 #.#lt 48 twin turbocharged V6 48 lint buildup 48 laboratory fume hoods 48 #g/km CO2 [001] 48 sub-#g/km CO2 48 intake vents 48 Hydride 48 Sodium cyanide 48 vapor permeation 48 nitrogen oxide burners 48 EthosFR + 48 gaseous byproducts 48 brake servo 48 cam phaser 48 hydrofluorocarbons HFCs perfluorocarbons PFCs 48 RoHs compliant 48 carburizing 48 rubber flapper 48 flow restrictors 48 petrol powerplants 48 faucet aerator 48 AdBlue urea 48 HAAs 48 #psi [002] 48 paints solvents 48 harmful pollutants 48 Visually inspect 48 Properly inflated tires 48 underinflation 48 ac voltage 48 Internal combustion engines 48 sulfur dioxide nitrous oxide 48 transaxles 48 VOC volatile organic compounds 48 B# biodiesel [002] 48 hydrocarbons nitrogen oxides 48 exhaust backpressure 48 Gasoline vapors 48 Hazardous substances 48 SO3 48 hoses belts 48 NOx reduction 48 methyl chloroform 48 hydraulic hybrid 48 airtightness 48 diaphragm valves 48 Sulphur dioxide 48 moisture vapor 48 hydrochloric acid HCl 48 B5 blend 48 halon gas 48 carbon monoxide particulate matter 48 toluene benzene 48 electrochemical reaction 48 CVT automatic gearbox 48 fluidized 48 diesel powered 48 GHG greenhouse gas 48 Btu hr 48 ULPA 48 NEMA Premium 48 unsprung masses 48 Continuously Variable Transmission 48 #i Gran Turismo 48 solvent borne 48 Remy electric motors 48 Chlorine dioxide 48 OSHA #.# 48 twin turbo diesel 48 condenser coils 48 pneumatic conveying systems 48 fine particulate pollution 48 IP# IP# 48 turbo diesel engines 48 radiator coolant 48 superheat 48 immersion heaters 48 nonroad engines 48 magnetic bearings 48 Greenhouse Gas Equivalencies Calculator 48 solvent vapors 48 thermowells 48 TOP TIER Detergent Gasoline 48 CO2/km 48 Civic Sedan 48 conveyorized 48 Fuel Special Purpose 48 ThermaCat TM 48 exhaust camshafts 48 hydraulic lifters 48 duct blaster 48 HEPA filtered 48 airbag inflator 48 exhaust camshaft 48 Quad Cab #x# 48 Multiair 48 #MPG [001] 48 preheats 48 pollutant emission 48 TRUs 48 Diesel Particulate 48 Hydrogen sulfide 48 Harshness NVH 48 Mercedes Benz BlueTEC 48 scroll turbo 48 electrically heated 48 regenerative brake 48 epoxy coating 48 Reverse osmosis 48 incomplete combustion 48 develops #kW 48 diesels 48 particulate matter 48 nitrogen tetroxide 48 diaphragm pumps 48 liter TDCi 48 Vortec #.#L 48 internal combustion engine 48 unladen weight 48 Composite Brake PCCB 48 Sodium hydroxide 48 methylene chloride 48 liter Ecotec 48 greenhouse gases GHG 48 permanganate 48 harmful toxins 48 prefilter 48 MICHAEL REYNOLDS 48 micronAir R 48 underhood 48 sporty Si 48 diverter valve 48 biodiesel fuels 48 Vortec #.#L V 48 Hydrogen fluoride 48 ThermaCat ™ 48 Interlocks 48 hydrogen sulphide H2S 48 Tiptronic S automatic 48 dual VVT 48 solenoid valve 48 TDI #PS 48 isopropanol 48 radiator fluid 48 pyrolytic 48 valve actuation 48 electrochromic windows 48 liquefied hydrogen 48 inert nitrogen 48 boron trifluoride 48 charge compression ignition 48 environmentally friendly refrigerants 48 Tier 4i 48 kinematic viscosity 48 NOx combustion 48 Smart Regenerative Charging 48 argon gas 48 Capstone MicroTurbine 48 #L# E 48 electrostatic filter 48 IP#K 48 garbage disposer 48 isobutylene 48 nitriding 48 vapor mist 48 turbo intercooler 48 noxious pollutants 48 E# blends 48 external inductor 48 chlorine disinfection 48 Leaky toilets 48 reflow oven 48 catalytic combustion 48 High Efficiency Particulate 48 corrosive gases 48 sooty particles 48 #V DDI OHV Turbo 48 flame retardancy 48 twin screw supercharger 48 Maximum Achievable Control 48 cylinder turbodiesel engine 48 ductless 48 Sn Pb 47 Multitronic 47 N2O hydrofluorocarbons HFCs perfluorocarbons 47 AC Induction 47 CRAC units 47 corrosivity 47 internal combustion engines 47 vibration isolators 47 D5 diesel 47 ozone depleting refrigerants 47 carcinogenic fumes 47 hepa filter 47 motor windings 47 #-# Z4 Roadster 47 groundwater contaminant 47 SEER rating 47 Installing programmable thermostat 47 AirPod 47 Intrinsically safe 47 normally aspirated engine 47 autosampler 47 R# BlueTEC 47 RenDiesel 47 VQ#VHR 47 #m# h 47 diesel fuel 47 shock absorber damping 47 NOxOUT SCR ® 47 T5 lamps 47 particulate 47 mercury emitted 47 radial piston 47 soot emitted 47 LR V8 47 sulfur fuels