zedex

I was talking to a guy here in Canada. He was telling me theres a product you can get in the states that you drop in the gas tank. Its not a liquid. That boosts octane to 104. It lasts from what he said a long time. No idea what a long time means. Anyone have any info?

kyle_22r

i think most of that stuff is just a scam. i know you can up your octane by a point or two by dumping a gallon of tolulene in your gas every time you fill up(e.g. 1 gal tolulene for every 10 gallons gas)

i've never really looked into it much though, since i run the cheapest stuff i can find

Mike Murrell

Unless you've done something to the compression ratio that now calls for 104, you're throwing your $$$ down the drain.

The muscle cars of the '60's and early 70's were the last to "maybe" benefit from such a product.

No auto mfg. makes anything that requires more octane that what's available at the pump.

Vato Loco

One of my friends that owns a CRX claims that it works, I think its all in his head but who really knows.

dbikeman

Its all in his head unless hes got like a 12:1 ratio in there. Pump gas works fine unless the engine is heavily modified.

zedex

ok. Thanks guys. I thought it was pretty far fetched. I dont know where he got the info. I was just curious about it and though you guys would have heard something. I never planed on increasing my octane, just wanted to know if this guy was ill informed.
I ran high octane stuff in my cr250 and zx 1100 but thats about it.

Andrey

The stuff your friend was talking about is probably "104 Booster" which is sold here in AutoZone or PepBoys. But as others have said, that stuff doesn't make any significant difference for the performance or gas milage.

-- Andrey

zedex

ok. Thanks for the info.

cstary

with 8spi of boost, you're looking at about 16:1 compression ratio on these supercharged engines, so there's plenty or us that could benefit from higher-than-pump octane. more info on this would be nice.

creed

dbikeman

Im talking about the pistons themselves. I dont think the supercharged people would get much either. Premium gas should be fine for them too

X-AWDriver

I had a datalogger PDA setup on my Eclipse and I tested octane booster vs 105 octane race gas and my logs showed little improvement against knock while the race gas I got great results with near 0 knock count and great timing advance but that was running 18psi on my 7.8:1 compression ratio and my car needed it.
It ran ok on pump gas (91) but at the strip I had to use at least 101.

cstary

most people ping with premium (91 or 92) at 8psi and the stock timing map. you have to retard the map to eliminate ping. another way to eliminate this is to increase the octane (racing gas, or water injection).

creed

Good Times

High octane is only good if you do alot of racing and your engine requires it.

If you just have a SC or something that's a bolt on application w/o any heavy mods to the Fuel System and or the engine itself, there is no need for this. Once you start building the block and bore out stuff and change the fuel system, you'll need better octane gas to run efficiently.


Efficiently means running at 100% power which is not something you'd be using on a daily basis.

Once you've spent thousand and thousands of $$ on your engine, it's a natural evolution to get better gas.. But for the most of us, it's not needed. Basically used only on tracks (btw)

kyle_22r

you could always get your hands on some 130 octane aviation fuel...no road tax on it though so it's technically illegal here

you didn't hear that from me though