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Discussion Starter #1 (Edited)
When I was searching for DS using the VIN Decoderz online, I noticed some DS listings showed that Flex Fuel (E85) was allowed.

Other listings showed Premium Unleaded as the fuel.

Is that true - we can run E85 safely ?

My manual states that we can't.

Can we run E85 in our tanks or was that a fluke / error or was that for a different non US market ??
 

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I remember this question from a training I took, and we were told that there are some differing materials, but the NAS owners is correct that E85 is not a recommended fuel.
 

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The DS owner's manual says:
"This vehicle is not suitable for fuels containing more than 10% ethanol. Do not use E85 fuels (85% ethanol content), as serious engine and fuel system damage will occur."


In California, most gasoline is 10% of Ethanol (E10) due to the clean air act law. I did ask the LR technician this question during my previous visit, and he says E10 is okay and no more than that.


I think this is one of the reasons that using E10 has a bit less MPG than the pure 100% gasoline:
https://www.cars.com/articles/2013/12/another-reason-your-mileage-may-vary-for-the-worse-ethanol/


The DS has an EPA estimated mixed 22 MPG, but my best average is only 20 MPG.
 

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I only use 100% gas with excellent results. Why in the world would you want to run E85? Is it the only thing available?
 
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