Mandate for E15 in the US- should I worry?
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I have a '99 XK8 convertible (X100). I read this morning the Biden administration is mandating 15% Ethanol in all US fuel this Summer. No confirmation yet, and I don't care about the policy implications.
I've read conflicting information on how big a problem this is for a pre-2001 car.
Does anyone have any definitive information on potential issues with this model and high ethanol fuels?
My thought is that if it turns up a problem, I might blend 5 gal per tank of 100 Octane E0 to bring down the overall ethanol ratio. Any opinions?
I've read conflicting information on how big a problem this is for a pre-2001 car.
Does anyone have any definitive information on potential issues with this model and high ethanol fuels?
My thought is that if it turns up a problem, I might blend 5 gal per tank of 100 Octane E0 to bring down the overall ethanol ratio. Any opinions?
#2
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We have E10 in the uK and they say the rubber in all the XKs is ok for ethanol.
The UK government checker says...
The UK government checker says...
Jaguar
E10 petrol is cleared for use in all Jaguar vehicles with petrol engines starting from model year 1992. Older models should continue to use E5.Last edited by Pistnbroke; 06-08-2022 at 10:10 AM.
#3
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E10 petrol is cleared for use in all Jaguar vehicles with petrol engines starting from model year 1992. Older models should continue to use E5.
From the reading I've done, there's apparently a 'blend wall' between E10 and E15 where older vehicles can have problems. I'm not sure how much of this is cruft and how much represents a real issue- certainly a lot of it is cruft.
The thing that caught my eye was that one of the potential issues was with the engine running hotter. I live in Arizona, and my XK8 is already dyspeptic over the 110+ degree Summer weather. It's my daily driver so I want to take care of it.
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I have a '99 XK8 convertible (X100). I read this morning the Biden administration is mandating 15% Ethanol in all US fuel this Summer. No confirmation yet, and I don't care about the policy implications.
I've read conflicting information on how big a problem this is for a pre-2001 car.
Does anyone have any definitive information on potential issues with this model and high ethanol fuels?
My thought is that if it turns up a problem, I might blend 5 gal per tank of 100 Octane E0 to bring down the overall ethanol ratio. Any opinions?
I've read conflicting information on how big a problem this is for a pre-2001 car.
Does anyone have any definitive information on potential issues with this model and high ethanol fuels?
My thought is that if it turns up a problem, I might blend 5 gal per tank of 100 Octane E0 to bring down the overall ethanol ratio. Any opinions?
Last edited by Markmbaha1; 06-10-2022 at 01:22 PM.
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Yeah, to echo xalty and clarify, it's not that they're mandating E15 but rather that there's normally a seasonal prohibition on it, and they're dropping the prohibition just this time.
In other words (other, other words I guess) if you're going to get E15 then you were probably already getting it all winter. Normally they would have shifted away from it for the summer for environmental reasons, but this time they're permitting (not requiring) gas companies to keep it in the mix for the next few months in response to the gas shortage.
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