EPA uses E0 gas for testing

[mamboman777]

I didn't know this: EPA uses E0 gas for testing.... Seems a bit unfair.

https://www.mpgomatic.com/2013/03/26/does-the-epa-use-e10-gasoline-for-fuel-economy-testing/amp/

Sponsored

 

[STARCOMMTREY1]

Remember.....rules for thee not for me

 

[olderbudwiser]

Yup, worked many years in Ford emission area. Not only non ethanol but high octane. I do not recall the number but all vehicles tested used same fuel. Regardless if it required regular or premium.

 

[710-oil-614]

Not surprising I guess. However I would think a manufacturers minimum recommended fuel grade is what would be tested.

 

[olderbudwiser]

Not surprising I guess. However I would think a manufacturers minimum recommended fuel grade is what would be tested.

I should be careful here as it was many years ago and procedures change.

 

[dceggert]

Yup, worked many years in Ford emission area. Not only non ethanol but high octane. I do not recall the number but all vehicles tested used same fuel. Regardless if it required regular or premium.

91 Research Octane Number (RON). That is the research number though. Remember that when buying fuel at a pump it may be labeled 87, 89, or 91 but that is the (R+M)/2 number. The "91 RON" is the "R" in the above equation.

The research grade fuel is used to make all the FE numbers on all gasoline vehicles equivalent. If 'pump' fuel were to be used it would be all over the map for results. You could end up with a V8 Silverado getting better FE than a Ranger Ecoboost due to shenanigans manipulating the test fuel or just some stroke of luck that one vehicle got some bad fuel on test day.

Also, it is important to point out that the FE number is NOT just to provide guidance to the customer it is used to rate the manufacturers fleet FE, provide a basis for corporate taxation, and to allow direct vehicle to vehicle comparisons with a common baseline.

 

[olderbudwiser]

91 Research Octane Number (RON). That is the research number though. Remember that when buying fuel at a pump it may be labeled 87, 89, or 91 but that is the (R+M)/2 number. The "91 RON" is the "R" in the above equation.

The research grade fuel is used to make all the FE numbers on all gasoline vehicles equivalent. If 'pump' fuel were to be used it would be all over the map for results. You could end up with a V8 Silverado getting better FE than a Ranger Ecoboost due to shenanigans manipulating the test fuel or just some stroke of luck that one vehicle got some bad fuel on test day.

Also, it is important to point out that the FE number is NOT just to provide guidance to the customer it is used to rate the manufacturers fleet FE, provide a basis for corporate taxation, and to allow direct vehicle to vehicle comparisons with a common baseline.

On occasion a prototype configuration would come through with instruction to run vehicle fuel. Back then I wondered why.
In later years different job discovered at APG we could mix our own fuel as there were times we would take a vehicle to the fuel lab and have 100 + non ethanol put in the vehicle.

 

[Snax]

Remember.....rules for thee not for me

Or there could actually be a reasonable explanation, with nuanced details due to a dynamic industry. Here’s some reading. https://www.epa.gov/regulations-emi...st-procedure-adjustments-tier-3-certification

 

[STARCOMMTREY1]

Or there could actually be a reasonable explanation, with nuanced details due to a dynamic industry. Here’s some reading. https://www.epa.gov/regulations-emi...st-procedure-adjustments-tier-3-certification

Yeah. Proves my point. They should have changed it when they mandated e10. But that would have hurt their numbers.

 

[STARCOMMTREY1]

Or there could actually be a reasonable explanation, with nuanced details due to a dynamic industry. Here’s some reading. https://www.epa.gov/regulations-emi...st-procedure-adjustments-tier-3-certification

And the rules for thee not for me is NOT a jab at any particular group but the entire fed govt as a whole.

 

[Arukoru]

Maybe this is a state by state thing but I can buy zero ethanol fuel here in Georgia just to address a couple rules for thee and not for me comments.

Additionally worth mentioning I think that it is probably easier to just have 1 fuel type and you're basically guaranteed to only need one fuel type with e0 premium.

edit: also I should mention that the EPA doesn't test gas mileage for consumer advocacy it does so to verify emissions standards are being met so if we're being really technical this doesn't matter at all.

 

[Snax]

And the rules for thee not for me is NOT a jab at any particular group but the entire fed govt as a whole.

You just can’t resist any opportunity to insert your politics into discussions, can you?

 

[atomguy245]

The EPA has a methodology for doing the fuel economy testing, but then original results get "massaged" before the numbers are put on the window sticker, in an effort to make them more realistic And the numbers on the window sticker are not the number the automaker have to use to meet their CAFE fuel economy requirements. The numbers the automakers are held to are more lenient. It's a complicated mess

 

[wjg]

Maybe this is a state by state thing but I can buy zero ethanol fuel here in Georgia just to address a couple rules for thee and not for me comments.

Additionally worth mentioning I think that it is probably easier to just have 1 fuel type and you're basically guaranteed to only need one fuel type with e0 premium.

edit: also I should mention that the EPA doesn't test gas mileage for consumer advocacy it does so to verify emissions standards are being met so if we're being really technical this doesn't matter at all.

https://www.pure-gas.org/extensions/maps.jsp?statecode=ALL

Might find this helpful.

 

[Arukoru]

https://www.pure-gas.org/extensions/maps.jsp?statecode=ALL

Might find this helpful.

Oh cool, really quite the void over there in the southwest

Sponsored