[woptang22]

Originally Posted by turugara

I only use Shell/Exxon. Occasionally I use the same BP station up Kelly drive.
Yeah I live 5 mins away from VAC so I tend to go there pretty often. My car's there now actually.

Ask Mike@VAC for current 109 octane prices.

Thanks for the advice. I wish I was a little closer to them. Im in Bristol Pa and its a pain in the ass getting to VAC after work at rush hour. But I actually found a local place that sells cam2. I think they said its 100 octane if Im not mistaken and $9.99 a gallon. I just wanted to give it a try to see if it makes my car run any better. It wouldnt cause any issues using the cam2 then going back to the normal 93 octane I use would it?

[turugara]

Originally Posted by woptang22

Thanks for the advice. I wish I was a little closer to them. Im in Bristol Pa and its a pain in the ass getting to VAC after work at rush hour. But I actually found a local place that sells cam2. I think they said its 100 octane if Im not mistaken and $9.99 a gallon. I just wanted to give it a try to see if it makes my car run any better. It wouldnt cause any issues using the cam2 then going back to the normal 93 octane I use would it?

Running a higher octane doesn't yield any benefits unless your engine is tuned for it. So if you do run a higher octane, run a race map on the cobb. Plus 10$/gallon for 100 octane sounds expensive.
http://store.vacmotorsports.com/vp-r...uel-p1940.aspx

[woptang22]

Originally Posted by turugara

Running a higher octane doesn't yield any benefits unless your engine is tuned for it. So if you do run a higher octane, run a race map on the cobb. Plus 10$/gallon for 100 octane sounds expensive.

Ok I had no idea how much it should cost. I dont think I can bump up on my COBB maps because I dont have downpipes so I cant even use their stage 2 maps. Im currently running the stage 1 +FMIC map. Maybe there would really be no reason for me to waste money or cam2 gas.

[woptang22]

Thanks for letting me know. I didnt realize what the cost should be. Thank you for the heads up.

[Exzackt]

You guys do realize Shell's premium gas is substandard to Chevron? Research before you devote your car to one brand..

[Dozhdbog]

Originally Posted by Exzackt

You guys do realize Shell's premium gas is substandard to Chevron? Research before you devote your car to one brand..

I've researched and come to the conclusion that all major gas brands are essentially the same since they use each other's gasoline. The only difference is in the additives they use.

According to the link below, the best policy is to change gasoline brands every 5000 miles so that the different additives can clean each other's deposits.

http://www.vettenet.org/octane.html

[Exzackt]

Originally Posted by Dozhdbog

I've researched and come to the conclusion that all major gas brands are essentially the same since they use each other's gasoline. The only difference is in the additives they use.

According to the link below, the best policy is to change gasoline brands every 5000 miles so that the different additives can clean each other's deposits.

http://www.vettenet.org/octane.html

I would agree with this. Personally I like the techron additive in chevron gas and think shell is just good at marketing v-power, I don't buy the "detergents" clean while you drive claim. I'm switching to a mixture of 91/100 76 gas once my jb4 is installed.

[Q4P]

Most big name gas stations get their gas from the same distributors but add different additives as someone mentioned. Gas from Wal-Mart is just as good as Shell / Exxon so there is no need to spend the extra money.

[Dozhdbog]

The detergents do clean away carbon deposits to a certain extent, but with direct injection engines, so I'm told, the fuel spray never really washes over the valves in such a way that deposits get effectively cleaned. Switching brands every 5k helps minimize the additional additive buildup of the previous brand along with mitigating carbon buildup, but I imagine by 50-70k miles everything would still look a bit gnarly in the pots.

[Dozhdbog]

Originally Posted by Q4P

Most big name gas stations get their gas from the same distributors but add different additives as someone mentioned. Gas from Wal-Mart is just as good as Shell / Exxon so there is no need to spend the extra money.

According the article I posted above, sticking with major name brand gas is a better policy as they have the most advanced additives. Walmart and arco and costco brand gasses may not have a good additive mix, or may not use enough, or may not have any at all.

[Exzackt]

Originally Posted by Dozhdbog

According the article I posted above, sticking with major name brand gas is a better policy as they have the most advanced additives. Walmart and arco and costco brand gasses may not have a good additive mix, or may not use enough, or may not have any at all.

+1

[Q4P]

Originally Posted by Dozhdbog

According the article I posted above, sticking with major name brand gas is a better policy as they have the most advanced additives. Walmart and arco and costco brand gasses may not have a good additive mix, or may not use enough, or may not have any at all.

Which is why I go to a different big name gas station whenever it's convenient ...haha

[mosx]

When I was younger I lived behind a "gas depot," for lack of a better term. It's where the big ass tanker trucks get their gas to deliver to the gas stations. Anyway I could see them fill up from my back yard. Chevron, Shell, Valero, Conoco, Texaco, Racetrack, QuikTrip, they all filled their trucks up off the same gas spout. Then they'd all move to a different spout for the additives. Each company did have their own additive spout though.

So Chevron = Shell = Valero = Conoco = Texaco + additives.

[Exzackt]

Originally Posted by mosx

When I was younger I lived behind a "gas depot," for lack of a better term. It's where the big ass tanker trucks get their gas to deliver to the gas stations. Anyway I could see them fill up from my back yard. Chevron, Shell, Valero, Conoco, Texaco, Racetrack, QuikTrip, they all filled their trucks up off the same gas spout. Then they'd all move to a different spout for the additives. Each company did have their own additive spout though.

So Chevron = Shell = Valero = Conoco = Texaco + additives.

Not all additives are created equal

[Dozhdbog]

The important think to take away from this is to use major brands and switch which brand you use every 5000 miles or so to maximize fuel quality and minimize engine deposits.

Or, switch every time you fill up in a regular fashion, eg, shell/76/chevron/exxon/shell/76/exxon/chevron etc.

Or, switch after 5 tanks.

Or, whatever.

[Tweeked SRT4]

I just got my JB4 installed on Friday night. I first tryed Map 1 on 93 and was impressed. I'm currently on Map 2 running 93 and was going throw in a NOS octane booster to see if I feel any difference. Right now 93 is about $4.71/gal in the Chicagoland area. My friend said the station a few miles from me that has 100 octane for $4.99/gal is still that price since last summer and didn't go up which I'm shocked so I'll be trying the Map 7 on 100 and might throw in half of the NOS octane booster. I have yet to try the Alpha Map 8. My drive to work is only 2.5 miles so I rarely use up gas unless I'm taking a trip somewhere on the weekends. I just filled up on Friday and already used up a quarter tank of gas doing pulls with the JB4 on Map 2. Just having a blast with the car now.

[Bavarian MW]

So I gather from a few posts here that people are running higher than map 1 without a downpipe? No CEL's or anything? Looks to me from the link below, map2 is downpipe + 93 only recommended. I am up for trying more boost if I hear people are running it this way with no dp?

Originally Posted by Tweeked SRT4

I just got my JB4 installed on Friday night. I first tryed Map 1 on 93 and was impressed. I'm currently on Map 2 running 93 and was going throw in a NOS octane booster to see if I feel any difference.

Originally Posted by BMSe92

Just curious... Those with an N55 and a Tune, what map and at what octane are you running? I always run map 2 (JB stage 2) with 93 oct

Originally Posted by mrj25

On Map 2, should you run 93 octane with NOS octane booster as recommended?
EDIT: says for optimal performance to run MAP 2.
http://www.n54tech.com/forums/showthread.php?t=13189

[Tweeked SRT4]

I've only been running on Map 2 for like 3 days and no CEL's or issues. I'm sure if I threw some 100 octane and mix some with a half of gallon of 93 it will feel stronger. I actually researched the same question about running on Map 2 but without a dp but on 93 and there was a few people that were doing that as long as your on 93 which is what I normally put in the car and cause 93 is the highest.