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Vigilante Vigilante is offline
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Posts: 7
Join Date: Mar 2017
Car: Activehybrid 3 M sport
Default How to test ethanol - 10-03-2017, 07:02 AM

Sadly where I live there is not e85 available but i got some ethanol and was running e20 on my stock pump but it died. I thought e20 was safe for the stock pump. I have now upgraded to walbro 450lph from fuel it and want to run ethanol but am afraid if i have the correct ethanol. Is there any way to check?

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Mernardi Mernardi is offline
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Posts: 44
Join Date: Apr 2014
Car: 2011 135i
Default 10-03-2017, 01:36 PM

Buy an ethanol tester on amazon. You add a small amount of water and fuel to a test tube, shake, let it sit for a bit, and it will give you a reading. I typically test my local station once a month to make sure. Then just make sure you are blending your fuel correctly.

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keyap keyap is offline
Posts: 1,676
Join Date: Jun 2012
Car: N55 135i
Default 10-03-2017, 03:50 PM

Have no pump E85 either so have to source from elsewhere.

Ran ~40% using the original OEM pump for roughly 4 years and covered around 20k without any issues.

Have now replaced with a FuelIt stage 2 lpfp, which was needed to support current power levels. When the OEM pump was swopped out, it was still going strong.

If you are sourcing E from somewhere else, it may not have been made to be used as 'car fuel' so try to get a full breakdown of the chemical 'make up' / content - I got hold of the data sheets so whatever the equivalent is for your country would be good. Based on what these said, there were a few sources I had to avoid as they contained nasty additives!

Try and check ASAP to ensure your source doesn't contain something which could potentially damage the new pump and/or other things. Also, remember that non pump E probably won't contain the same lubricants as pump E85. If the lubricants aren't present, running high concentrations for extended periods is probably not advisable.

UK 2011 - E82- 135i - N55 - DCT

JB4 | BMS OCC | N20 TMap | Fuel-It! PI | AIC6 PI Controller | Fuel-It! Fuel Lines | Fuel-It! Stage 2 LPFP | Continental In-line E Sensor | ER Charge Pipe | Pure Stage 2 Turbo | Pure High Flow Inlet | GFB DV+ | Richter C'less D/Pipe | Berk Race Full Exhaust | MFactory Pro Helical LSD (75% Bias Ratio) | eDiff Disabled Via Coding | MFactory Solid Diff Bushes | Diff Lockdown Bracket | Custom 98G0B BEF | NGK 5992s | KW3 Coilovers

Last edited by keyap; 10-04-2017 at 04:49 AM..
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