What kind of gas is best?
#1
Junior Member
Thread Starter
Join Date: Nov 2010
Location: Lancaster, PA
Posts: 46
Likes: 0
Received 0 Likes
on
0 Posts
Car: 91 Camaro Z28
Engine: 305 V8 (5.0L) TPI
Transmission: 700R4
Axle/Gears: 2.73
What kind of gas is best?
I have a 91 Z28 TPI with in around 132k miles, completely stock. What octane gas should I be using? I have been using 93 or 91 since I had the car, which has been a year now. I have a few people telling me I'm wasting money on the Ultra/Premium gas and should just use the 87 oct. 87 to me is like putting sludge in your tank. I figured the car is 22 years old, has 132k miles on it and is a 305 V8 with the TPI system. So it needs the best it can get. So am I right using 91-93 or 94 octane gas or just use the 87 octane.
#2
Supreme Member
Join Date: Apr 2012
Location: Streetsboro Oh
Posts: 1,353
Likes: 0
Received 1 Like
on
1 Post
Car: 1987 T/A WS6 T-Tops/92 RS
Engine: LB9/3.1
Transmission: 700R4/700R4
Axle/Gears: 2.73/3.23
Re: What kind of gas is best?
Well i use 87 in my Koup and truck as they call for it, 93 in the HD it calls 91 or higher. As for the TA I run Sheetz 93 in it as it's old and I would rather not risk pinging and since I don't drive it everyday the cost is not much differant.
#3
Senior Member
Join Date: Jun 2005
Location: Savannah GA
Posts: 502
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1986 IROC
Engine: 355" TPI
Transmission: 700R4
Axle/Gears: 3.42
Re: What kind of gas is best?
I use 87 and run knock free. The only reason to run anything higher than 87 is to prevent knock.
#4
Senior Member
Join Date: Jan 2006
Location: Michigan
Posts: 793
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1987 Trans Am
Engine: 5.0L TPI
Transmission: 700R4
Axle/Gears: Richmond 3.73
Re: What kind of gas is best?
your fine with 87, specially being stock. If you had a built motor, it would be different. Every once and awhile toss a bottle of octane booster in like on every 3 tanks.
Seafoam works wonders also!
Seafoam works wonders also!
#5
Senior Member
Join Date: Jun 2009
Location: Evansville, IN
Posts: 511
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1983 Z28
Engine: Forged 355
Transmission: 700r4
Axle/Gears: 2.73
Re: What kind of gas is best?
They are saying that because you are wasting your money. Absolutely no reason to run anything other than lower grade on a stock motor. Start reading up on motors and you will know why.
Trending Topics
#9
Member
iTrader: (1)
Join Date: Mar 2003
Location: Colorado
Posts: 347
Likes: 0
Received 0 Likes
on
0 Posts
Re: What kind of gas is best?
87 is a pretty base engine. 87 will be perfectly adequate unless you have an issue with the engine. Here in colorado, they HIGHEST you can get is 89 octane! You don't really need premium anywhere, anytime for a base 3rd gen engine.
Thread
Thread Starter
Forum
Replies
Last Post
MikkoV
TPI
2
09-09-2015 04:25 PM