NukeC5

Quick question before the races tonight.

Would adding an octane booster do anything for my car at the strip? It is tuned on 91 octane, so would it do anything, or would it do more harm than good?

Tron Z

If the engine already has sufficient octane for the tune, using octane booster will only lighten your wallet. It won't hurt anything, but it won't help, either.

maxx2200

In my experience, octane booster doesn't help. What i've found that does help is high octane, leaded race gas. I buy 108 from a Yamaha dealership and My Vette and my Harley love it and I experience a noticeable improvement.

lucky131969

Ok, I take it you have removed your CATs?

maxx2200

Great point but no, I have not. High flow cats, but still have cats.

Tron Z

Lead is the kiss of death for oxygen sensors and cats!

lucky131969

As already stated, they won't be functional for long......

maxx2200

NukeC5

Ok, thanks guys. No octane booster for tonight.

Bill Curlee

Unless you getting Knock Retard (KR) on your current tune, adding octane booster is worthless.

onlyavette

I would think that with the way gas is these days you may want to try it and see. Chevron and Mobil are what I use because of the reporting on gas in this area (Los Angeles) is that they are consistent in octane field tests. It has been my experience not only with my c5 but with my Wife's 2012 Mustang GT that one tank will ping and the next tank won't. I have read that The Torrance Mobil refinery distributes most of the gas sold in L.A. no matter what brand you are buying. Haven't seen it myself but they say you can watch just about any brand truck fill up at the same spot and that the detergent package for the various brands are put into the gas after the truck tanks are filled. I have made a few passes on the 1/4 mile at AAA Speedway in Fontana and I used booster just to make sure it wasn't going to be a "ping" day. Knock retard certainly makes a difference in my c5.

NukeC5

So maybe just one of those cheap little bottles of STP or the like booster that does maybe a 2 or 3 octane increase to be safe? As long as it wont have detrimental effects I don't mind putting it in to be at my max potential.

87SAM

Those cheap octane boosters do not raise the octane by 2 or 3 full points, they raise by .2 or .3 of one point.

WKMCD

That stuff is mostly donkey ****. The only one I know that really works is Torco. I carry a few of cans/bottles when I travel into states with only 91 octane.

Mike Mercury

: Bill !!!

toooo many people confuse octane (gasoline) - to the likes of nitromethane (alcohol).

They are exact opposites.

Octane is a combustion inhibitor... not an enhancer.

WKMCD

Only the ones that think there is an "explosion" going on in the cylinder.

lucky131969

.....you have the right idea......but not quite.....

RonSSNova

Have a good time!
Unless scanning, you won't know if it get's into KR. So don't worry about it.
When mine shows KR, it doesn't have a huge effect on the ET. Maybe .03 seconds.
If you were to add something, 100 octane unleaded race gas. It's expensive!

Also, as was suggested to me, leave the car in D, not in 3 and don't manually shift it.

Ron

dusty05

x2 on Torco! I can see the results with Torco while scanning with HP Tuners! Can't say that about other products....

RonSSNova

Well, we're waiting.........