The stuff i used to get from sherwin williams said automotive grade right on the 5gal can and it was like 33 bucks also it works best at 5%

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I recently watched a BMW dynoed with 93 and then again with 93 with Boostane added to it. While it took a few pulls for the car to react to the change when it did the car went up just under 60whp. I've never had any faith in gas additives but Boostane definitely increases HP.

it was probably a turbo car

Just as an FYI, unless it only had a gallon of gas, and the car was tuned for like 100 octane, the dyno pull you saw was a sham.
Either the operator was doing something or maybe the car wasn't warmed up in the first run. My car gained 10-15 WHP from the first pull to the last pull when oil temp went from 180 to 210

Unless it was one of the turbo ones, :iagree:

Even then I probably still :iagree:

Looks as though I will have to go downtown to find the toluene. I checked on base at a couple locations with no luck. Apparently the local city used to carry 97 Ron but since it wasn't being used as much as the 95 Ron they discontinued it. I will keep you posted on my finding and DEpointfiveO when I find the paint thinner I will run any additional constituents by you and see if they will have a harmful affect. Thanks again for everyone's input. This is why I come to the 370z side of the house way more performance based :driving:

Depending on how long you'll be there and how much your total fuel cost per gallon is after adding the toluene, it still may be more cost effective to get another map to run the pump gas over there. That way you could have your 93, 91 and then a low octane map. That would also come in handy if you're evey in the middle of nowhere and don't have the option of good gas.

I will be here for a year longer then Germany for three years. So I just have to get through the next 12 months in this dilemma. Then I am sure Germany will have all the octane ranges I could ask for. Good point with the tune and that maybe another route I will check into if this fails or the cost ratio just is not going to cut it. It's not like I am drag racing here or running FI. It's more of a piece of mind with breather mods / factory gasoline octane guidelines.

I really want to see someone tune in an 87 map so we could see just how much power you lose going down to regular.

It was a M3 so yes it had turbos and Z1 posted similar results recently on a turbo car. If it helped gas on a turbo why wouldn't it on a NA car? I've never owned a turbo car so fill me in if I'm missing something.

The higher the octane the more you can advance the timing. The more you can advance the timing without getting knock, the more power you can get.


On an NA car the hypothetical gains that are possible aren't that high because there isn't that much going on I guess.
On forced induction it allows you to force more air and more fuel AND advance the timing



Correct me if I'm wrong guys. I know it's a bit more complicated than my crap description, but I tried to keep it simple

One of the new M3s? Cool.

You can run more boost with higher octane. Higher octane won't have as much of an effect on NA cars.There's only so much air you can get into a cylinder while staying NA.

yup more octane lets you adavance the timing which gives you power, eventually there is a point that regardless of octane you cant advance the timing any more and still make power, you will actually start to lose power. An NA car only needs enough octane to get the timing to that point. With boost since higher octane doesn't detonate as early, you increase the boost and the timing and for a whole hell of a lot more power.

With a higher octane you could typically run a little less rich as well which will net even more power. On a car with high boost instead of running 10 to1 afr you could run 11 to 1 afr since you don't need as much of a safety factor.

But if it did that wouldn't it help the OPs fuel problem? The shop that works on my car always has cool cars in it, the owner tuned GTRs in japan for a while. Look up NUR Performance on Facebook some time. There is a GTR Alpha 9 and a Alpha 7 at the shop right now.

yeah but the real question is, is it cheaper than toluene?