[OUGrad05]

You guys ever run any fuel system treatments or octane boosters?
I run a Lucas product from time to time (about once a year) on the fuel system.


Been running this in my cars for basically 10+ years with what seems to be solid results. However, I don't usually run an octane booster. With me putting a tune on soon and not having convenient access to 93 I'm going to load a 91 octane tune. However I am thinking I may add a bit of booster just to compensate for any low octane gasoline and especially in the summer heat when engines are more prone to detonation.

Any thoughts or suggestions in this regard would be good to hear.

[thejeremyman9]

I am also curious about the use of fuel treatments/injector cleaners. I have read good things about Redline SI-1 for other vehicles, but have never added anything to my BMW. If you search BMW in the reviews section of the amazon listing for the product, some people mention this was used/sold my BMW. Can anyone confirm this?

https://www.amazon.com/Red-Line-Comp.../dp/B000CPI5Z0

As far as octane boosters, i think the most common/effecitve is boostane. However, it turns everything orange... I will probably never use an octane booster. Ill just switch to an ethanol tune when i want to run higher octane. Not sure how access to E85 is in your area. I am in CA and our 91 is crappy, so i have the same low octane gas concerns. I am running MHD Stage 2+ 91 OTS map. My timing is pretty good in most logs, from zero timing corrections during a pull to a few.

[sspade]

Ive used Techron every 10k or so. Usually the last fill up before oil change... not sure if this is necessary or just an old wives tale. Can fuel systems cleaners potentially end up contaminating the oil?

https://www.chevronlubricants.com/en...m-cleaner.html

[WaleeF30]

For fuel cleaner I use chevron fuel system cleaner

Chevron Techron Concentrate Plus Fuel System Cleaner - 20 oz. https://www.amazon.com/dp/B00092893E..._r1IjEbXY33JFS

I don't know about additives though. I use 93 vpower from shell.

Sadly no tunes yet, have to get my money up

[WaleeF30]

Originally Posted by sspade

Ive used Techron every 10k or so. Usually the last fill up before oil change... not sure if this is necessary or just an old wives tale. Can fuel systems cleaners potentially end up contaminating the oil?

https://www.chevronlubricants.com/en...m-cleaner.html

Don't see how that's possible, fuel system cleaners are for cleaning fuel lines, fuel injectors, etc.

People do it with or around the time they do oil changes just as a reminder to do it. Has nothing to do with the oil.

[sspade]

Originally Posted by WaleeF30

Don't see how that's possible, fuel system cleaners are for cleaning fuel lines, fuel injectors, etc.

People do it with or around the time they do oil changes just as a reminder to do it. Has nothing to do with the oil.

Tons of info/opinions out there on this. I certainly didnt dream it up...

https://www.bobistheoilguy.com/forum...Number=1461271

[sspade]

Originally Posted by WaleeF30

Don't see how that's possible, fuel system cleaners are for cleaning fuel lines, fuel injectors, etc.

People do it with or around the time they do oil changes just as a reminder to do it. Has nothing to do with the oil.

Fuel does end up in the oil, not uncommon. Therefore treated fuel can end up in the oil. Whether or not it matters is up for debate...

[OUGrad05]

Originally Posted by WaleeF30

Don't see how that's possible, fuel system cleaners are for cleaning fuel lines, fuel injectors, etc.

People do it with or around the time they do oil changes just as a reminder to do it. Has nothing to do with the oil.

Fuel dilution (of the oil) is a real thing. N55 isn't particularly prone to it but I had a mazdaspeed3 and it was a big deal on that car.

[WaleeF30]

Originally Posted by sspade

Fuel does end up in the oil, not uncommon. Therefore treated fuel can end up in the oil. Whether or not it matters is up for debate...

I must've worded it wrong, my point was that I don't see how it can "contaminate" the oil since it goes through the same way gas does. Yes sometimes gas ends up in the oil but usually not enough to cause an issue and usually burns off pretty quick and the same applies to the additive.

Only time it becomes an issue is when you start finding a lot gas in with your oil caused by a leaking injector or something.

And I say doing the cleaner around the oil change time is more of a reminder because I seen mixed opinions, some saying do it before the oil change and some saying after

[Seba77W]

I use liqui moly jectron fuel injector cleaner. And also have used Boostane professional octane booster while running a stage 2+ 95 octane tune on my 435i, after a few thousand miles of use the plugs were orange but not too horrible and according to boostane it's normal and not harmful. However I was still pulling timing even with about 10oz Of boostane and 12 gallons of shell V-power 93 octane. So I decided to ditch it and flash down to a 93 octane tune.

[CajunBMW]

I have used the chevron product and the liqui moly product for years on my e46 and now my f30. Maybe added every 5k miles or so. The e46 lasted for 135k miles or so until totaled. I would like to think that good maintenance allowed it to last that long, while running just fine. I hope my f30 lasts that long.

[thejeremyman9]

When doing a quick google search i came across this:

https://www.fcpeuro.com/products/bmw...413341#reviews

Rebranded techron? It even says it on the bottle.

[1QuikWS6]

Originally Posted by thejeremyman9

When doing a quick google search i came across this:

https://www.fcpeuro.com/products/bmw...413341#reviews

Rebranded techron? It even says it on the bottle.

Yes, the BMW fuel cleaner is simply rebranded Chevron Techron - but @ a higher price = use Chevron

I use Chevron every 3500mi as it calls out in one of the BMW pamphlets

I normally run 93 octane, but sometimes in the hot summer months I will 'juice up' with Boostane

https://boostane.com/?gclid=EAIaIQob...SAAEgLPrvD_BwE

[F32Fleet]

Originally Posted by OUGrad05

You guys ever run any fuel system treatments or octane boosters?
I run a Lucas product from time to time (about once a year) on the fuel system.


Been running this in my cars for basically 10+ years with what seems to be solid results. However, I don't usually run an octane booster. With me putting a tune on soon and not having convenient access to 93 I'm going to load a 91 octane tune. However I am thinking I may add a bit of booster just to compensate for any low octane gasoline and especially in the summer heat when engines are more prone to detonation.

Any thoughts or suggestions in this regard would be good to hear.

Without dyno runs nobody has any idea as to whether or by how much it works for your application.

[CrimsonMoonLight72]

I’ve been using Klotz Octane Booster. They are based out of Indiana and no MMT!

[F32Fleet]

A gentleman (ASE L1, Deutsch Meisterbrief) who owns his own shop which includes rebuildng injectors has recommended Berryman-B12 for varnish within the fuel system and then a PEA like Techron OR Redline SL-1 for carbon. Every 10k to 20k miles.

The reality is that ethanol is a great solvent by itself and top tier gas should keep injector tips free from carbon.

[CajunBMW]

Originally Posted by F32Fleet

A gentleman (ASE L1, Deutsch Meisterbrief) who owns his own shop which includes rebuildng injectors has recommended Berryman-B12 for varnish within the fuel system and then a PEA like Techron OR Redline SL-1 for carbon. Every 10k to 20k miles.

The reality is that ethanol is a great solvent by itself and top tier gas should keep injector tips free from carbon.

Good info thanks. Basically fits with my experience. I did not do a specific test, but for the most part between my e46 and f30 I have almost 200k miles. I just followed required bmw maintenance and am myself pretty careful to notice issues before they get bad, but really I just drove the care and followed the bmw schedule and added an additive every 5-10 k miles. I have not used b12, but have use the redline product and some liquimoly. I don't know if they really worked, but 200k says they likely didn't hurt. I also think the car did get a little smoother after a product was added, but could have just been my imagination.