Exhaust emissions: LPG vs Unleaded fuel
Exhaust emissions: LPG vs Unleaded fuel
(OP)
Does anyone have any information of the different levels of exhaust emissions for the same engine running on the two different fuels mentioned?
Is it 5% , 50% someother number?
So far as I can find there is a reduction when running on LPG but the amount of decrease is not stated.
Thanks, Pete.
Is it 5% , 50% someother number?
So far as I can find there is a reduction when running on LPG but the amount of decrease is not stated.
Thanks, Pete.





RE: Exhaust emissions: LPG vs Unleaded fuel
Its not the same world today with LPG vehicles. It is for all purposes next to impossible to bolt on mechanical components on a late model vehicle and make the engine cleaner than unleaded, it takes sophisticated electronic fuel management and injection to at least equal the unleaded engines emissions performance. Like it or not, the playing field needs to be equal now between unleaded and LPG emissions performance.
Franz
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RE: Exhaust emissions: LPG vs Unleaded fuel
RE: Exhaust emissions: LPG vs Unleaded fuel
I don't have percentages to share, but Azmio's numbers look about right. Based on my prior experience at a major tier 0.5 upfitter/converter (www.qtww.com) an engine being converted to LPG from Gasoline generally improved one EPA tier rating. For example, if the engine was rated a LEV II, converting to LPG generally improved it to SULEV. A SULEV generally improved to a SULEV II, etc . . ..
Now that being said, we had all of the same engineering talent that any OEM had for doing calibrations and emissions certifications. Franzh is correct, the controls and calibration have to be top notch, and a botched job could easily result in a higher emissions engine on LPG.
-Tony Staples
www.tscombustion.com
RE: Exhaust emissions: LPG vs Unleaded fuel
RE: Exhaust emissions: LPG vs Unleaded fuel
RE: Exhaust emissions: LPG vs Unleaded fuel
The numbers provided are a big help.
Pete.