http://store.hvchemical.com/browse.cfm/4,192.htm

Thanks for looking - want to make sure I get the right stuff.

Cheers and Hhols

Dude for that price might as well buy some C16!

Dude for that price might as well buy some C16!


Would C16 give me the same 'mix' octane?

Thanks for idea though
Cheers

how does that compare to torco?

You don't need tech grade toluene for your gas tank. I use tech grade in the lab. For chemical reactions. that are sensitive.

If you want cheap toluene, go to your local paint or hardware store and buy it by the barrel. It is way cheaper then what your looking at and it should be fine as an octane booster. Just don't overdo it.

Oh, and mixing with c16 will give you the "mixed" octane.

...i usta get PPG toluene for $25/5gal :(

ran LOTS and LOTS of it

using more than 2 gallons/tank is a waste

Thankyou Fellas - very helpfull

how does that compare to torco?

There was a sale on 5 gallon cans of Torco. IIRC, it was under $150. I don't use much per tankful and it treats gasoline to the same octane number with much less needed per gallon of gas.

If you are set on using toluene, check an automotive paint specialty store in your area. You would at least save on shipping. I used to get mine in 5 gallon cans. You could even order a 55 gallon drum (cheaper per gallon) there.

so toluene can be had fairly easy and from what i've googled, a 5gallon can is as low as $63. torco is more effective but also costs almost 3 times as much.

i'm about to embark on a roadtrip out to colorado, and most of the gas along the way is only 91 octane. i'm just curious if it'd be worth it to add some toluene every fill up just for peace of mind. i know i can fill up with 91 octane even though i'm tuned for 93 and it won't hurt the motor since the ecu will compensate.

according to this forumla:

( Gallons_of_gas * Octane_of_gas ) + ( Gallons_of_toluene * 114 )
__________________________________________________ _
Total Gallons

(12.5 * 91) + (1 * 114) / 13.5 = 92.7
(11.5 * 91) + (2 * 114) / 13.5 = 94.4
(12 * 91) + (1.5 * 114) / 13.5 = 93.5

so do you think it's worth the trouble or should i just adjust the right-foot mod in check?

forget toluene for a road trip

roger roger

forget toluene for a road trip

QFT.

I get Toulene for $35/5 gallons, from a paint store. I use 1 gallon of Toulene with 11 gallons of 91 for effective 93 octane. I fill up around quarter tank.

While I am tuned for 91, I like the safety buffer the toulene gives me, especially with WOT driving on crappy cali gas. I had been running VP 104 (I think), but it would take 2.5 gallons to do the same as 1 gallon of toulene. That is 2.5 times the cost!! I dunno about Torco, but logic tells me that there is NO WAY to get enough octane in a 1 qt. bottle. Am I supposed to believe this crap?

http://torco.com/images/fuels/torco_accel_comparison_02.jpg

so toluene can be had fairly easy and from what i've googled, a 5gallon can is as low as $63. torco is more effective but also costs almost 3 times as much.

i'm about to embark on a roadtrip out to colorado, and most of the gas along the way is only 91 octane. i'm just curious if it'd be worth it to add some toluene every fill up just for peace of mind. i know i can fill up with 91 octane even though i'm tuned for 93 and it won't hurt the motor since the ecu will compensate.

according to this forumla:

( Gallons_of_gas * Octane_of_gas ) + ( Gallons_of_toluene * 114 )
__________________________________________________ _
Total Gallons

(12.5 * 91) + (1 * 114) / 13.5 = 92.7
(11.5 * 91) + (2 * 114) / 13.5 = 94.4
(12 * 91) + (1.5 * 114) / 13.5 = 93.5

so do you think it's worth the trouble or should i just adjust the right-foot mod in check?

Just don't boost it. I don't see the need to boost it on the highway. Furthermore, if something goes wrong you're that much more away from home... My vote is for the right foot mod!

Just don't boost it. I don't see the need to boost it on the highway. Furthermore, if something goes wrong you're that much more away from home... My vote is for the right foot mod!

that's what i figured. it's not necessarily for the drive out to colorado, it's more for when i'm in colorado for the month or so. i'd just rather be safe than sorry since i'm tuned for 93 and i'll be stuck with 91 :(

the octane is the least of your worries. I'd be thinking about the altitude change first.

the octane is the least of your worries. I'd be thinking about the altitude change first.

yeah that too :furious:

...i'll be taking some logs when i get there to see what's up. i doubt i'll make any changes to my map, i'll just have to take it easy when i'm out there.

I'm in boulder, co and know a few people that run 93 octane maps and just use off the shelf octane booster and they run fine. I know that most of them say there is only one kind that works well, but I forgot which it is. Besides, if your coming from lower elevation, you probably will be running a little rich anyway.

And the cold air temps will screw with you more then the altitude this time of year.

are you on awdpirates? i'll be out there visiting my gf and doing some skiing, hopefully there'll be some meets or events going on while i'm there.

I am a pirate. There may be a couple of track events the end of the month and there are usually meets weekly, depending on where you are. enjoy your stay in co and maybe I'll see you around.

Another pirate here.. You should be ok as long as you are easy on it! What part of town are you staying in?

i'll be in boulder, not sure exactly where. the gf knows.

the octane is the least of your worries. I'd be thinking about the altitude change first.

Increased altitude DECREASES an engine's octane requirement. Wake up!

Increased altitude DECREASES an engine's octane requirement. Wake up!

never knew that. so there's less reason for me to be concerned.

The MAF can also sense elevation change. I believe the ECU is capable of making change to account for elevation, unlike carb'ed cars.

Increased altitude DECREASES an engine's octane requirement. Wake up!

yep. lower ambient pressure means that absolute manifold pressure is less for the same amount of boost (remember, what your boost gauge tells you is the amount of pressure in the intake manifold over ambient, so you have to add the ambient air pressure to get absolute intake pressure, ie in denver your absolute pressure will be a few psi lower then at sea level), and less oxygen is going into the engine.

It's the same reason people can't breath at elevation :)