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Technical Topics B58 6-Cylinder Turbo Engine / Drivetrain / Exhaust Modifications M340i xDrive and E85.

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      09-29-2020, 08:36 AM   #1
Denys_BMW
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M340i xDrive and E85.

Could stock M340i xDrive supports full E85 fuel?
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      09-29-2020, 12:27 PM   #2
G333
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No.

You will need this:

https://burgertuning.com/products/fu...-b58-bmw-m340i
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Last edited by G333; 09-29-2020 at 12:37 PM..
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      09-29-2020, 02:18 PM   #3
Denys_BMW
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What is the point? Ethanol sensor would just show me ethanol percent in fuel, but could I use so high percent of ethanol in car or not it would not answer.

P.S. I don't have E85. I have 93oct fuel and pure ethanol.
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      09-30-2020, 04:32 AM   #4
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Quote:
Originally Posted by Denys_BMW View Post
Could stock M340i xDrive supports full E85 fuel?
You will need a proper tune for ethanol mix. I guess stock TU pump can handle up to E50, or maybe more but im not sure.
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      09-30-2020, 05:37 AM   #5
Denys_BMW
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I tried E39 (93oct fuel + pure ethanol). There was no issues. And logs look good for my taste.
https://datazap.me/u/denysbmw/%D0%B5...=4-19-20-21-22
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      09-30-2020, 05:39 AM   #6
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The m340 has a stronger pump than the Supra, I’ve been running a e50-60 tune for the past 8 months
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      09-30-2020, 05:48 AM   #7
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Quote:
Originally Posted by Antec800 View Post
The m340 has a stronger pump than the Supra, I’ve been running a e50-60 tune for the past 8 months
You mean that I don't need to be afraid of even E70. I want to understand for myself. The main problem that I can have with high ethanol is that my HPFP will start to relieve pressure. If my pressure in HPFP is good nothing bad could happen?
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      09-30-2020, 04:19 PM   #8
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I’ve been running e60 sometimes e70 I’ve sent over 300 logs and the tuner says everything is good, only way to know for sure is to constantly log and sent to a tuner to review, although I will say e70 may be a bit high to run for extended peroids
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