[imageautodetail]

do they work and what are some good ones and why, saw a NOS brand that says it raises the octane on 16 gallons of gas by 6 points, i find it hard to believe that a 16 oz bottle can raise the octane at all

[rader1]

Each point usually = .1 octane
Do a search, there are a few different boosters that people have had luck with

[imageautodetail]

yeah this was 60 points, so 6 octane points

[rader1]

Originally Posted by imageautodetail

yeah this was 60 points, so 6 octane points

Really? Damn, thats pretty good. IIRC NOS was one of the boosters that people did recommend and supposedly it did make a difference

[805beemer]

don't forget Torco, can raise your octane several points depending how much you dilute in the tank. Here's there website http://www.torcousa.com/torco_product/un_acce.html
You can also buy it in 5 gal can. I used it on my Sti as it was notorious for knocking on anything less than 93 and 91 is all i can get here in CA.

[Haus_07]

Definitely do your reaearch on fuel additives. I can't remember the site where i saw a very in-depth comparison between most of the boosters on the market, and 95% of them did almost nothing. Some only raised the actual octane by .1!!! So let's say you had a tank full of 91 (the highest you can get @the pump here in the valley), and after spending $15+ for a bottle of booster, the octane rating was then 91.1!! Not really a good bang for your buck!!! There's a ton of info and comparisons out there, so search and you shall become enlightened!!! Really, if you have access to actual race gas, your going to have much better results than any of the so called "octane boosters"!! GL!!!

[blackshan]

Originally Posted by imageautodetail

do they work and what are some good ones and why, saw a NOS brand that says it raises the octane on 16 gallons of gas by 6 points, i find it hard to believe that a 16 oz bottle can raise the octane at all

U should try some 108 octane booster! It's a yellow and black bottle and it's made in Conroe Texas if u can. I use it with 91 and my jb4 map 5 autotune map always increases boost with it mixed in the gas. Here in Oklahoma u can get it at autozone or oreily's in two sizes.

[jballer123]

i have done 1000's of dyno test on $40,000 off road race engines i built, and we tested every octane booster and the best we found that increased CA 91 octane from the local arco and Shell station was lucas oil octane booster. In our testing in a private lab the one bottle of lucas oil octane booster mixed with 10 gallons of gas gave an increase of almost 4 octane point consitantly. CA 91 was right below 95 octane after the mix

[Haus_07]

Originally Posted by jballer123

i have done 1000's of dyno test on $40,000 off road race engines i built, and we tested every octane booster and the best we found that increased CA 91 octane from the local arco and Shell station was lucas oil octane booster. In our testing in a private lab the one bottle of lucas oil octane booster mixed with 10 gallons of gas gave an increase of almost 4 octane point consitantly. CA 91 was right below 95 octane after the mix

Great info!!! It's nice to see that at least one of the octane boosters out there actually provide a significant increase in octane!! From what I've read, most are total junk, and some have a specific additive that can actually do damage to direct injection engines!! Again, definitely spend some time searching before you dump ANYTHING into the tank of your expensive BMW!!!

[blackshan]

Originally Posted by blackshan

U should try some 108 octane booster! It's a yellow and black bottle and it's made in Conroe Texas if u can. I use it with 91 and my jb4 map 5 autotune map always increases boost with it mixed in the gas. Here in Oklahoma u can get it at autozone or oreily's in two sizes.

Also there is two different types! One is harmless to o2 sensors and cats while the other stronger mix may cause harm to o2 sensors and cats. I tried the Lucas octane booster and didnt care for it! Just my opinion from experience. That's not to say it doesn't work, but just not as good.