Favorite gas additives
 

Preparing for emmissions ran a bottle of crc cleaner, although I always use premium fuel I have noticed a difference in performance. Normally once in a while it will stall idling down for a redlight for example, hasnt thought of doing that on this tank. Anyone running a octane booster as routine and if so favorite brands. I've used Techron over the years buy believe thats more of a cleaner to be used every 3000 miles or so, I'd be interested in something safe for every fillup.

3 gallons of e85. High octane and the alcohol cleans things out. At 3 gallons you won't have any computer issues

How long have you been doing this? Really not a good idea with the stock fuel system

Torco Accelerator..used it for a track day, made me feel faster:tup:

Seb @ Specialty Z recommended it so, it can't be too bad.

I've been doing this for about 2 years now. Tuned like this by Seb. Fuel pump is ok, injectors are about as high safely as they can be.

I've had good results in a few different vehicles. Just important to keep the ratio were the computer can handle it

Interesting. So you get 3 gallons of e85 and then I assume you fill the rest with 93? Any idea what octane rating that comes out to more or less? Or just an intake temp thing?

Well I'm in lovely CA here so 91. Mixing gets me into the area of 93 octane

Torco is the best fuel additive you can get. It actually works exactly as advertised unlike those other cheap options in part stores that don't work. I used to run it all the time in my '05 Legacy GT. Car was originally tuned on a full tank of 100 octane. Since that was a very expensive fuel to run daily I decide to run Torco all the time. I add Torco filled up with 93octane and ran the car on the 100octane map and it ran perfectly with 0 knock. I was actually able to get a bit more aggressive with the timing map when I ran it.

Octane Booster back from the Dead
 

I'm in the same boat as a lot of people.You have modified your car and are running a higher octaine map.Can not buy high octane fuel at pumps.Have bought VP race gas from stealer in town.$13.00 a gallon.I can get cheaper online but shipping makes it a wash.
So the much debated fuel additives.Have tried Lucas,Boostane,NOS,Royal Purple and was using Torco.
Started useing Race gas additive last summer.Liked the power,seemed to run smoother.The stuff is not cheap though.I would like to know who else is running race gas additive.
I like Race Gas and Torco.A lot of the other additives are junk.

Seafoam for when ever I want to create a smoke screen. All kidding aside, octane boosters are by and large useless for anything other then placebo. Touroline is about the only effective additive that is cheap enough to use in bulk to make a difference in Octane. Cleaner additives are good for neglected old motors but make little difference in well maintained newer motors.

Toluene? Yeah, it works well but it isn't cheap any more. Toluene/Xylene with a splash of Marvel's Mystery Oil was the recipe for redneck octane booster for a long time.

What are you running for octane?Can you buy 97- 100 octane where you live?
What other alternatives are there for higher octane on boosted car other than methanol injection?
Also Sea foam is great.I put in everthing when I put away for winter.

I ran some of VP’s ethanol free C10,,,,Z loved it/ though I wasn’t tuned on 100 octane & 75$ for 5gal pail.
When I perform my next build; gonna run Ignite’s 114 e90 fuel.

$63 for 5 gallon of vp 100 octane here in FL:)

$82.00 dollars here for VP100.Be nice to find a cheaper way.

I have always used Chevron fuel injector cleaner,Chevron fuel system cleaner, and Redline SI-1 fuel system cleaner. Having did and helped with engine tear downs and rebuilds after using these fuel additives I can say they help to control carbon build up and help to keep fuel injectors and fuel system clean. I can say that Techron is one of the few top tier premium additives and is a great cleaning additive. I have also seen great results where Seafoam was used a specially on higher mileage vehicles. At the track running strip,track,auto x,auto cross events I have always used 91 or 93 octane gasoline with one bottle of NOS race formula octane booster. NOS race formula octane booster is one of the few octane boosters that is safe to use with oxygen sensors and catalytic converters and helped with spark knock/pinging. I have spoke to Nissan engineers and they highly recommend only using top tier gasoline’s that use a premium additive.

Boostane has been working well for myself and a few guys locally.

klotz hitrate, I use it with 91 octane, works great, even there octane booster works, sebs my tuner and I use ecutek

I've been using Sea Foam as a additive in all my vehicles for the past 20 years or so. I put a can in a full tank at every oil change and it seems to work really well for me. Not so much as an octane booster, but to keep things clean. I even use it in the Z when I store it for 6 months during the winter. Took the car out of the garage on Sunday, and she fired up as if I'd been driving it all year...love this stuff.

Good comment from another thread: http://www.the370z.com/engine-drivet...ml#post2498569

yes, it was also mentioned in this thread by me & another poster.

...except that the reason I linked this precise post was to offer a counterpoint that octane boosters (in a can) have little...if any...appreciable effect.

Take a look at race gas site.You can compare the Dyno numbers.

Additives I do not use. I would fill up with Race fuel if I needed more.

What is the alternative
 

My whole point of this was for people with boosted cars who need more octane.High octane pump gas may not be available in their area.I'm hearing negative from people.I'm hearing positive from people that are using additives.I would like to hear from people that have the higher octane maps on car.What are you using?

I went to the Race-Gas site, but didn't see any comparative numbers. I watched a couple of videos, and they added a whole crapload of additive to 93 octane, but no before/after dyno runs. I don't doubt that it does something, and certainly more than you'd get out of a 12-ounce can of something from your local auto parts store.

I can't imagine having to run that stuff all the time just to keep your engine from self-destructing...holy cow! Major pain on the wallet!

Recommended by Seb, I have used LiquiMoly octane booster. 2 cans per full tank, each can costs about $11 dollars and the car does run a lot smoother due to shitty California 91 being... shitty. I've been wanting to mix a small amount of E85 to see if it would benefit me on my high octane map like lj909 said he does, not sure how it'll be on a stock fuel system.

https://www.youtube.com/watch?v=JOqr...kTGeKRMChC0SdN

Worth watching! They tested boostane fuel additive

Dyno numbers
 

This is from Race Gas Site.

I have been using VP100 unleaded for the street.You can see the price is crazy.
I have 1 map on car where it was tuned with the Race gas additive at 100 octane.
Performed well.

Wow do people have some strong feelings on this.

I’d pay either what you guys pay... VP Race fuels run $120
out here for 5 gallon pails.

Race-Gas additive has proven to be a great supplement. Seb and I used it to finish my 100+ octane tune when my local race shop ran out of the VP stuff. Seb approved and it worked wonders. Now I can use either for my race gas map.

RACE GAS | Racing Fuel Concentrate

Unleaded higher octane race fuel are great; if you are tuned for it & especially if you’re boosted..otherwise you’re wasting your bucks.
I did intentionally run ethanol free 93octane in mine & occasionally splashed some C10 in with it.....but its a fast burn fuel.
That can open another conversation/ as I’ve ran blended various race fuels with my 93 & would notice how rich it would burn (specific gravity over .800).and sometimes have some build up/residue on rear bumper cover afterwards.
Some additives/boosters are corrosive as well.
I see a lot of good results from “Ignite Race Fuels” (ethanol)....be sure & have your car tuned with it & a specific map setting for optimum results....as Mr. Bsmokes has done.
My biggest noticeable changes came from driving in cold/dense air.