does it really make a big difference

**purplebat66** · 05-19-2008, 04:38 PM

I was driving my car the other day and filled up in a gas station that i usually dont use and after that the car felt a little sluggish.I was told at work that it makes a big difference, what do u guys and gals think? thank you.

**purplebat66** · 05-19-2008, 04:40 PM

Sorry the gas type and premuim of the gas.

**Mr. Luos** · 05-19-2008, 04:47 PM

Yes, yes it does.

The computer had two different sets of timing tables. Varies depending on octane.

**purplebat66** · 05-19-2008, 04:49 PM

Thank you is there any kind of additive to improve octane boost that u would recommend, thank you.

**Mr. Luos** · 05-19-2008, 04:51 PM

No.

93 octane....octane booster is basicly worthless.

**purplebat66** · 05-19-2008, 04:54 PM

okay thank you

**Mr Z** · 05-19-2008, 06:12 PM

Wait, are you about using something besides premium or about buying from cheaper gas stations as apposed to the more expensive (chevron/shell for instance)?

**INMY01TA** · 05-19-2008, 06:32 PM

Originally Posted by Mr Z

Wait, are you about using something besides premium or about buying from cheaper gas stations as apposed to the more expensive (chevron/shell for instance)?

X2. I'm confused.

**Mr. Luos** · 05-19-2008, 06:33 PM

While it is fairly known....some simply are trying to save a little $$ by finding the cheapest fuel possible.

Although...at no time should anyone put anything but premium into an LS1 powered car.

**Cronex** · 05-19-2008, 09:50 PM

I always get 93 octane for my TA. I don't recommend anyone to use anything lower. Though I do understand some people want to just use a lower grade because it is cheaper. But yes, the grade does indeed matter for performance without a doubt.

**hutch1999** · 05-20-2008, 06:57 AM

91 is as high as I can get in town...it sucks

**LSCyaL8R** · 05-20-2008, 08:05 AM

As fiercely loyal as some brand patrons are the reality is that there are very few places where these trucks fill up. For any given area there may be only one depot where trucks pick up fuel to deliver to the stations. It is the additives which make a brand and those don't get introduced to the gas until it is in the truck and on its way to being delivered. federal requirements also dictate the ammount and type of additives in the fuel so brand differences are small at best. Unless your local cheapo is putting water in the gas your certainly safe bargain hunting. In fact there are inspectors that go around checking pumps and gas for both accuracy of the pump and for content of the gas. So again for the most part cheaper is better in this case.

Of course you gotta stick with the premium in your pride and joy. I'm used to it by now with the 4.6 DOHC.

**speedracer25f** · 05-20-2008, 08:21 AM

You have to watch where you get gas. I manage an autoparts store and Ill get a rash of customers that all of a sudden their car started running badly. I ask them if they just filled up and where. The answer is always yes. Usually places like supermarkets give out the bad gas. Occasionally other stations get bad tanks. We have a shell here that gives out crappy gas. I only shop at sunoco and never had a bad tank.

**egod** · 05-20-2008, 08:42 AM

sometimes if cash is tight i'll grab some 87, i know that its not great for performance but it won't cause any harm right? its not like it needs it for forced induction or anything. Just asking cause i'll spend the extra everytime if that's the case

**02cetransam** · 05-20-2008, 09:25 AM

i can only get 91 octane here

**Cronex** · 05-20-2008, 09:56 AM

Originally Posted by egod

sometimes if cash is tight i'll grab some 87, i know that its not great for performance but it won't cause any harm right? its not like it needs it for forced induction or anything. Just asking cause i'll spend the extra everytime if that's the case

In them instances I wouldn't run it hard, race it or anything. Just cruise. But then again people run them with 87 im sure...they just don't admit it. So its up to you. But if you use it daily the long term effects can suck.

**Spaz** · 05-20-2008, 10:52 AM

Originally Posted by 02cetransam

i can only get 91 octane here

it will run perfectly normal on 91...

**Spaz** · 05-20-2008, 10:53 AM

Originally Posted by purplebat66

Thank you is there any kind of additive to improve octane boost that u would recommend, thank you.

octane boosters only raise your octane by .1... so now instead of 93 octane you have 93.1...

**blackls1ta** · 05-20-2008, 01:02 PM

Originally Posted by speedracer25f

You have to watch where you get gas. I manage an autoparts store and Ill get a rash of customers that all of a sudden their car started running badly. I ask them if they just filled up and where. The answer is always yes. Usually places like supermarkets give out the bad gas. Occasionally other stations get bad tanks. We have a shell here that gives out crappy gas. I only shop at sunoco and never had a bad tank.

+2 on the sunoco 93 its the best