"The EPA has approved E15 for use in cars built since 2001, but automakers, do not necessarily agree that the older cars should use it."

"Using gasoline with a higher concentration of ethanol than the automaker recommends could damage metal and plastic parts. This is especially true in older cars, which can experience other problems associated with burning alcohol. Ethanol absorbs moisture more easily than gasoline, which can cause corrosion problems in fuel tanks and gum up filters and carburetors. It also can dissolve rust in the fuel tank, which could then find its way into the fuel system."

https://www.hagerty.com/articles-vid...like-it-or-not


My Jag was built in 2000.

I've been using E-10 for many years since that is virtually the only option here in AZ, USA.

I will try to keep using E-10 when E-15 is mandated. If I have to fill up with E-15, will it damage my Jag?

 

My Manual on p. 4-13 states:

Oxygenated gasoline

Fuels that are blended with compounds containing oxygen, called oxygenates, may be used. Common oxygenates are ethanol or grain alcohol (blended at no more than 10%), methanol or wood alcohol (blended at no more than 5% with necessary co-solvents and additives, and MTBE or methyl tertiary butyl ether (blended at no more than 15%). The type of oxygenate may be found on the fuel pump or by asking the attendant. In certain areas of the country, oxygenates are required to be in all fuels to help improve air quality.

Generally, difficulty should not be experienced while operating the vehicle on fuels containing oxygenates. If problems are experienced switch to a fuel with a different type of oxygenate, or switch to a fuel that does not contain oxygenates, if available.

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Not helpful re E-15!

 

https://www.jaguarforums.com/forum/x...coming-215037/

Already posts on this subject.

 

E-15 is not coming to your corner gas station anytime soon.anywhere not just the USA
Th sky is not falling.

 

E15 has not been "mandated", it's being allowed to be legally sold.

 

The car will be fine. I worked for Jaguar on the development of these vehicles and we would spec the fuel system for Brazil and their use of E22.

I never understood why some people here get obsessive and insist on using non ethanol fuel - to the point of specifying 91 octane (and then wondering why their AJ26 S/C knocks!).

If it was an older car, like my 1985 M635CSi or my E type- that would be different....

 

Yes, for XK / XKR ( X150 )2006 - 2014
I do not know if a 6 year newer engine (X150) is better able to handle ethanol vs. the older X308.

My newer cars have inf. in the owner manual stating ethanol up to 15% is OK.

 

My poor choice of words. I don't think E-10 is mandated either but, every gas station here in AZ seen to have it as the only choice. I've read of a few stations selling higher octane gas & pure gas but few & $$$$$.

It may be that whatever cost incentives caused the stations to sell only E-10 will have them all selling E-15.

As long as they give me a choice, I will stick with the E-10 which has caused no (known) issues for my old Jag.

 

Because the issue has been blown out-of-proportion, especially in the car hobby circles. There's a lot of scape-goating going on


The owners manual for my *1985* Jaguar clearly states that E10 is OK so Jaguar was allowing for E10 at least that far back. Not sure about BMW.

When it comes to 50s-60s-70s vintage cars, well, it my well be true that original hoses, carb gaskets, etc don't like E10. I have to wonder, though, how many of them are still running around on original hoses, fuel pumps, etc. And, how long do we expect these things to last before replacement anyway?

I well remember rusty fuel tanks, replacing rotted-out fuel hoses, and dried-out accelerator pumps way back in the 70s....long before E10 was commonplace!

Cheers
DD

 

E10 gasoline is federally mandated in certain high-smog prone areas (mainly urban areas). E15 is currently sold at stations using blender pumps (which give you the ability to "dial-in" your preferred ethanol blend). These blender pumps are pretty rare, even here in ethanol country. The current rule change allows these blender pumps to sell E15 year-round, instead of just in the winter. E15 would be cheaper than E10, but I wouldn't worry too much about E15 becoming the only choice available. E10 will remain in the areas its currently mandated to be in, and E15 will be available in the mostly rural areas where customer demand for it exists.

 

I always run the US Shell V-Power premium fuel but am looking to switch over to non-ethanol for a spell just to compare.