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marvin1792 marvin1792 is offline
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Default is E85 good or bad for our cars? - 09-02-2015, 06:50 PM

Hey everybody,

So I have been running my car on 93 octane, but it is very hot hear and my iat is high and my avg ign is high as well. I don't care about making extra power, but I want to know if running E85 would help the car in terms of reliability in these conditions. Thanks
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Default 09-02-2015, 06:56 PM

Meth and an intercooler will help the most.

That said, your thread title, no E85 will not harm the car or the fuel system. According to a German engineer from a post I've read on the forum that engineered the fuel system, the fuel system was designed to work with E85. So don't worry about it.


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335iFFM 335iFFM is offline
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Default 09-02-2015, 07:15 PM

Quote:
Originally Posted by swat
Meth and an intercooler will help the most.

That said, your thread title, no E85 will not harm the car or the fuel system. According to a German engineer from a post I've read on the forum that engineered the fuel system, the fuel system was designed to work with E85. So don't worry about it.
Source?


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Default 09-02-2015, 07:26 PM

Quote:
Originally Posted by 335iFFM
Source?
I will try find it for you.


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Cynical Cynical is offline
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Default 09-03-2015, 04:48 AM

Quote:
Originally Posted by swat
Meth and an intercooler will help the most.

That said, your thread title, no E85 will not harm the car or the fuel system. According to a German engineer from a post I've read on the forum that engineered the fuel system, the fuel system was designed to work with E85. So don't worry about it.
Rofl. Our cars are not specifically designed for e85. Thats really funny.
Every car past like 1995 has been designed to tolerate ethanol in the fuel system as All gasoline has 10% included.
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Default 09-03-2015, 06:57 AM

Quote:
Originally Posted by Cynical
Rofl. Our cars are not specifically designed for e85. Thats really funny.
Every car past like 1995 has been designed to tolerate ethanol in the fuel system as All gasoline has 10% included.
I thought that I read that 2001+ had to "tolerate" 15%.

This may be where I read it:
http://www.ethanolretailer.com/frequ...onsumers/#1037

I guess that means they tolerate E15.



2009 BMW 135i | Alpinweiß | 6AT | MHD/BMS JB4 G5 ISO32.8 | JB4 MHD 3/15/17 E85 Backend Flash | BMS Anti-Lag | Fuel-It Stage 2/ES-1/JB4 integration Kit | AD Engineering Port Injection | PR (Turbo-side) Inlets | PR Ignition System | VRSF DP | aFe Exhaust | Cobb FMIC | ER CP | Tial BOV | N20 TMAP | BMS Oil Cooler Valve | JB4 Mobile | 100% E85 | H&R Swaybars F&R | BA Diff Lock | StopTech D&S Rotors F&R | Cool Carbon Pads | Michelin PSS


Last edited by Texsquirrel; 09-03-2015 at 07:03 AM..
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fnne99 fnne99 is offline
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Default 09-03-2015, 07:52 AM

Quote:
Originally Posted by swat
Meth and an intercooler will help the most.

That said, your thread title, no E85 will not harm the car or the fuel system. According to a German engineer from a post I've read on the forum that engineered the fuel system, the fuel system was designed to work with E85. So don't worry about it.
I remember reading something about this also. IIRC, the only issue the engineer mentioned was that when running on e100 there were problems at high heat situations and the injector.
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Default 09-03-2015, 08:24 AM

Quote:
Originally Posted by Cynical
Rofl. Our cars are not specifically designed for e85. Thats really funny.
Every car past like 1995 has been designed to tolerate ethanol in the fuel system as All gasoline has 10% included.
Yes it is smart ass. It's on Bimmerboost. There was a conversation with a continental engineer that designed our fuel injectors. We can now say with 100% certainty everything that gentleman said is true. (Example he told us the n54 could and did run stratified fuel injection during development, we found this to be 100% accurate recently when we (jake really) started delving deeper into the dme.)

Read it here buddy: http://www.bimmerboost.com/showthrea...njection/page2

The injectors were updated and the fuel filter changed shortly after this. So e100 would even be A OK.

hilarious right? (Not bein a dick just poking some fun because you thought it was so out of the question)

Don't forget BMW designed this as a global motor architecture and a technology testbed for many things.
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boost junkie boost junkie is offline
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Default 09-03-2015, 08:59 AM

Then just like every good thread on BB it turns into a vendor mug slinging fest.
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Default 09-03-2015, 09:30 AM

Is cynical Tony Vargas? Because they both come across as a complete dick in nearly every post they make and both bash just about everybody except each other?


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Default 09-03-2015, 11:02 AM

Quote:
Originally Posted by Nniftyfour
Yes it is smart ass. It's on Bimmerboost. There was a conversation with a continental engineer that designed our fuel injectors. We can now say with 100% certainty everything that gentleman said is true. (Example he told us the n54 could and did run stratified fuel injection during development, we found this to be 100% accurate recently when we (jake really) started delving deeper into the dme.)

Read it here buddy: http://www.bimmerboost.com/showthrea...njection/page2

The injectors were updated and the fuel filter changed shortly after this. So e100 would even be A OK.

hilarious right? (Not bein a dick just poking some fun because you thought it was so out of the question)

Don't forget BMW designed this as a global motor architecture and a technology testbed for many things.
Thank you! This was exactly the thread I was looking for! I knew I wasn't imagining this!


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csu87 csu87 is offline
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Default 09-03-2015, 12:25 PM

If it was bad for your car, then why would it feel so good?
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marvin1792 marvin1792 is offline
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Default 09-03-2015, 01:46 PM

it is interesting that for a product that seems to be soo widely used there is not really a clear consensus on the long-term effects on our vehicles while using this product.
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Rnm Rnm is offline
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Default 09-03-2015, 02:27 PM

I'd say that it's bad for our cars considering the tires don't last at all lol


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Default 09-03-2015, 02:36 PM

E85 is wearing out my fuel gauge too.
It causes it to drop towards E faster than E10 did.



2009 BMW 135i | Alpinweiß | 6AT | MHD/BMS JB4 G5 ISO32.8 | JB4 MHD 3/15/17 E85 Backend Flash | BMS Anti-Lag | Fuel-It Stage 2/ES-1/JB4 integration Kit | AD Engineering Port Injection | PR (Turbo-side) Inlets | PR Ignition System | VRSF DP | aFe Exhaust | Cobb FMIC | ER CP | Tial BOV | N20 TMAP | BMS Oil Cooler Valve | JB4 Mobile | 100% E85 | H&R Swaybars F&R | BA Diff Lock | StopTech D&S Rotors F&R | Cool Carbon Pads | Michelin PSS

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Default 09-03-2015, 06:27 PM

If you read the threads from a couple years ago it was conclusive that ethanol kills the hpfp and will dissolve your pistons and block and also cause end of times, legalized pot, and gay marriage.

A few of these things may have been true but most of them have been debunked. My 2007 has been on ethanol for longer than I can remember and my hpfp/injectors are still original.
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Default 09-03-2015, 06:36 PM

Quote:
Originally Posted by marvin1792
Hey everybody,

So I have been running my car on 93 octane, but it is very hot hear and my iat is high and my avg ign is high as well. I don't care about making extra power, but I want to know if running E85 would help the car in terms of reliability in these conditions. Thanks
No, speaking for reliability and being "healthy" it is always best to use 93 octane fuel.


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Default 09-03-2015, 06:38 PM

Quote:
Originally Posted by v8bait
If you read the threads from a couple years ago it was conclusive that ethanol kills the hpfp and will dissolve your pistons and block and also cause end of times, legalized pot, and gay marriage.

A few of these things may have been true but most of them have been debunked. My 2007 has been on ethanol for longer than I can remember and my hpfp/injectors are still original.
E85 still kills gaskets and seals over time. With that being said, I run E85 as well. To much fun


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Default 09-03-2015, 06:38 PM

Quote:
Originally Posted by natedog7700
No, speaking for reliability and being "healthy" it is always best to use 93 octane fuel.
Well I use straight ms109 full time and nothing has gone wrong in my car in over 60,000km I've run it.


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Default 09-03-2015, 07:44 PM

Quote:
Originally Posted by natedog7700
No, speaking for reliability and being "healthy" it is always best to use 93 octane fuel.
And stock boost and stock intake and stock *********...



2009 BMW 135i | Alpinweiß | 6AT | MHD/BMS JB4 G5 ISO32.8 | JB4 MHD 3/15/17 E85 Backend Flash | BMS Anti-Lag | Fuel-It Stage 2/ES-1/JB4 integration Kit | AD Engineering Port Injection | PR (Turbo-side) Inlets | PR Ignition System | VRSF DP | aFe Exhaust | Cobb FMIC | ER CP | Tial BOV | N20 TMAP | BMS Oil Cooler Valve | JB4 Mobile | 100% E85 | H&R Swaybars F&R | BA Diff Lock | StopTech D&S Rotors F&R | Cool Carbon Pads | Michelin PSS

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Default 09-03-2015, 08:30 PM

Best reliability on a BMW can be easily achieved by a Corolla swap.
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Default 09-04-2015, 06:07 AM

Quote:
Originally Posted by natedog7700
E85 still kills gaskets and seals over time. With that being said, I run E85 as well. To much fun
Perhaps but petrol burns filthy compared to ethanol. Ethanol should leave your combustion chamber (piston tops, exhaust valves, cylinder head much cleaner and less prone to carbon build up. Most gaskets should never see fuel except anything in the low pressure side of the fuel system.
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marvin1792 marvin1792 is offline
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Default 09-04-2015, 08:06 AM

Quote:
Originally Posted by natedog7700
No, speaking for reliability and being "healthy" it is always best to use 93 octane fuel.

what about issues with timing and avg ign from using 93 instead of mixing in some ethanol?
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Default 09-04-2015, 11:40 AM

Quote:
Originally Posted by swat
Well I use straight ms109 full time and nothing has gone wrong in my car in over 60,000km I've run it.
Race gas has lead. That kills your catalytic converters. $$$


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Default 09-04-2015, 11:41 AM

Quote:
Originally Posted by Texsquirrel
And stock boost and stock intake and stock *********...
I would say yes to the stock boost but aftermarket ********* are probably better for the car in terms of back pressure and turbos being able to "breath" better. Less heat/wear over time. But i could be wrong because i have no data to back myself up.


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