How to calculate an Ethanol Mix on your BMW (E30, E50, etc)

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Instructions on how to calculate an ethanol mix perfectly on your BMW. All you need is a test kit and an ethanol calculator app.
Steps:
1. Access the hidden menu to verify your fuel tank size and amount of fuel in the tank
2. Test your pump gas and E85 to verify their ethanol content
3. Plug the numbers into your favorite ethanol calculator app/tool
Fuel-It Ethanol Test Kit:
www.fuel-it.com/ethanol-conte...
E85 Mix Calculator App
play.google.com/store/apps/de...
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Опубликовано:

26 июл 2024

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Комментарии : 62

@ballzdeep7396 2 года назад

“Highly regulated fuel container” 🤣🤣 classic

@MC-ez6lq 3 года назад

I use my head lol. I’m new to this and my B58 is on a E30 mix. So I figured it’s not that bad to try to figure it out in my head. But I’ll for sure check out some apps now

@dennisshyu6797 3 года назад

thanks man very helpful, i used the total gas tank capacity which was 15.8 for me and then checked the obd2 sensor value for how much gas was in the tank to calculate. After i run out of the current blend i'll prob run a full 93 tank to check the fuel tank display value like how you advised to get it more accurately before returning E30.

@derrickjohnny9350 2 года назад

instablaster

@cartere9981 2 года назад

I filled my car up and the sensor was still at like 86 percent I wouldn't go off of that I let it go all the way to 0 miles range and did like a 33 percent mix just to be safe now I just do a 6-7 gallon e30 mix anytime it gets to half

@RA-zk4gg 8 месяцев назад

Cool vid..

@davids6263 3 года назад

As always, great video Kern. Something that isn't very clear now though is whether the stock HPFP on a gen 1 b58 can handle even E30 blends. I've read some tuners have used the stock HPFP for full E85 blends, yet some people say not to even try e30 on a stock pump.

@kern417 3 года назад

Any fuel pump can support any blend when tuned properly. However you're likely to lose power when running more than e30-e50 because you have to reduce boost to a safe level.

@mariomunoz7167 2 года назад

@@kern417 How is that so? Any pump for any blend? I had to upgrade my hpfp on my 2018 m2 to support e30 efficiently. My lpfp can’t go above e30. What do you mean?

@kern417 2 года назад

@@mariomunoz7167 ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-2YNlGYwAZM8.html

@mariomunoz7167 2 года назад

@@kern417 b58 as opposed to the n55 in the m2. I see what you’re saying, but for us the lpfp cannot support anything past e30. The same applies to the hpfp for us.

@mariomunoz7167 2 года назад

@@kern417 When you say ‘any blend’, you’re saying you could run even e85-e90 with a fuel pump that cannot keep up. Are we not on the same page? Just trying to understand what you’re saying. Here to learn the facts

@spallaxo Год назад

I have a WRX, hoping Cobb makes a Flex Fuel kit again. I technically no need it but then I'd have to have dual tunes and switch back and forth if no e85 available. So most likely I'll wait for a new flex fuel kit. Apparently they're putting R&D into a new one so There's a Sunoco nearby that goes all the way down to e51

@ocengoceng2959 3 года назад

Hi Kern, very helpful! So for your blends you're including the secret tank reserve of 5L (total of 60L) or only the displayed one of 55L? Cheers

@kern417 3 года назад

Only displayed

@ocengoceng2959 3 года назад

Got my answer 55L ;)

@ocengoceng2959 3 года назад

Will try E30 blend with OTS map on my 440xi ^^ while waiting for dorch HPFP to arrive

@ocengoceng2959 2 года назад

@Jimmy Abbiati my custom tune is still undergoing, definitely more aggressive than usual fuel

@ianlam1445 2 года назад

@Jimmy Abbiati you can get the supra fuel pump or b58tu hpfp. A lot cheaper.

@agents977 2 месяца назад

E85 cal is a perfect app

@trapgodnah9022 3 года назад

What if your on E30 map and low on gas and cant reach a E85 pump, is it safe to fill up on 93 or would you need to remap?

@kern417 3 года назад

It's always best to flash the right map for your fuel, but you can drive if you have to just don't floor it until you get some e85 in the tank

@trapgodnah9022 3 года назад

@@kern417 i understand, its like 3 E pumps in nyc

@trapgodnah9022 3 года назад

6 months ago i had just bought the car now im ready to dump E in it lol

@trapgodnah9022 3 года назад

For the section E in tank, do i put 0 or do i test the 93 gas to see how much ethanol is in the 93, or is the 93 at all pumps acurate with the E mixture?

@kern417 3 года назад

You can test the 93 as well. In the US it can be anywhere from 0-10% ethanol.

@trapgodnah9022 3 года назад

@@kern417 last question, do gas stations keep the same ethanol content all year round or is it going to be a little different every fill up?

@kern417 3 года назад

@@trapgodnah9022 it can change. It usually goes up in summer and drops in winter but some stations are just inconsistent.

@BulliKid Год назад

Will 51% burn slower then the 85% e content? Because that will effect the afr right

@kern417 Год назад

E51 will typically have better mpg than E85 yes

@Mr.strange11 Год назад

On my bmw 428i writed Ethanol 10% max ? Its means that medicine spirt ? C2H5OH

@mariomunoz7167 2 года назад

Just need advice: for my fbo f87 m2 with dorch stage 2 hpfp and precision raceworks coils, what gap should I set my 97506 plugs?

@kern417 2 года назад

.022

@mariomunoz7167 2 года назад

@@kern417 Thank you. So I removed the pr kit yesterday morning. Couldn’t figure out why the car kept misfiring. Dropped the factory Delphi coils back in, gapped to .22 and it worked. Pulls hard, but the idle sounds choppy. Like a pulsing idle. Don’t know what’s going on. As for the pr kit, I’ve read in a few forums that some had bad experiences. Pr kit just wouldn’t work. Have you heard anything similar?

@DLau95 13 дней назад

Hey I’m in CA. We don’t have 93. How would can u get 93 octane for mixing 91 and E85? I have a 16 gallon tank size. Thanks!

@Wudanspecialist 2 года назад

Hey I get my E delivered in a drum. Tests for E98. Was wondering if I should mix it with 93 octane or 91. The guy who sells the ethanol told me to mix it with 91 because our shell 91 has 0% ethanol so it makes for the most accurate mix. Our good 93 octane contains 5-10% ethanol which makes it harder to get precise mix. So my question is should I use 91 to get the most accurate mix? or use 93 for that extra octane points and try to get it as exact as I can?

@kern417 2 года назад

It shouldn't matter much. You can test 93 the same way as e85 to confirm the ethanol content.

@Wudanspecialist 2 года назад

@@kern417 ok thx rlly appreciate it🙏🙏but generally is there gonna be a performance difference between mixing with 91 or 93?

@kern417 2 года назад

not significant in my experience

@ParthPatel-rw5rb Год назад

How do you have the up and down arrows for the drive mode? Is that a 4 series thing only ?

@kern417 Год назад

What exactly are you referring to

@ganuv 2 года назад

Yes I agree .. The one thing that’s unclear is whether the first generation fuel pump can handle an E30 blend on a stage 2 93 octane , nobody seems to explain it yet.

@kern417 2 года назад

Just run the map for the fuel you're running. Simple

@Johnathann54 Год назад

I have a 15.9 gallon tank and I just don’t let it get past half tank makes it easy mixing e50

@franzgruske7686 2 года назад

Can i use 99,9% ethanol to mix up my fuel to the correkt blend ? Like: 35l of 98 octane and 15l ethanol for a e30 map ?

@kern417 2 года назад

Sure just put 99 as ethanol percentage

@mcartier713 6 месяцев назад

Surprised no one has asked yet... on the first switchover from pump gas, you would need to assume the 15.8 gallon tank to account for the ~1 gallon still in reserve, yes? and then once you're up to the desired blend, you can knock down the tank size to the displayed 14.5 gallons? is that right?

@mcartier713 6 месяцев назад

or just add one gallon of gas less than the app calls for? either way.

@kern417 6 месяцев назад

You can add in the reserve to the calculation yes