Gasoline
Burning Brakes
Joined: Feb 2013
Posts: 904
Likes: 296
From: Sacramento, California
MY question is--HOW OFTEN are the pumps checked at Top Tier stations? Cheked to make sure the Xtra adatives have been put in--anyone know? Another question is--when are the adatives put in--i have heard all fuel comes out of same pipeline--tankers fill up with that gas but when do they add xtra stuff?
Another thing people are not aware of is there is no mid grade or 89 octane. Basically 89 is a blend of 91 or 93 and 87 which comes from both tanks at the gas station.
Steve
Le Mans Master
Joined: Sep 2013
Posts: 8,900
Likes: 1,074
From: Wisconsin
The additives are added at the refineries before distribution, but there are some companies like Exxon who add it during the loading process at the refinery. Each company has it's own additive like Chevron=Techron, Shell=V-power, etc, but not all companies use an additive, some just have the standard detergent added during the refinement process. Also worth mentioning is that all 3 grades of gas have the additive, not just premuim.
Another thing people are not aware of is there is no mid grade or 89 octane. Basically 89 is a blend of 91 or 93 and 87 which comes from both tanks at the gas station.
Steve
Another thing people are not aware of is there is no mid grade or 89 octane. Basically 89 is a blend of 91 or 93 and 87 which comes from both tanks at the gas station.
Steve
Burning Brakes
Joined: Feb 2013
Posts: 904
Likes: 296
From: Sacramento, California
Steve
Le Mans Master
Joined: Sep 2013
Posts: 8,900
Likes: 1,074
From: Wisconsin
I was only referring to the fact that refineries do not make 89 octane. When tankers fill up at a refinery or when you get 89 at a station the 89 is a blend of higher and lower octane. The 89 your referring to was blended during the loading at the refinery and no ethanol was added.
Steve
Steve
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Melting Slicks
Joined: Aug 2013
Posts: 2,491
Likes: 315
St. Jude Donor '15-'16-'17-'18-'19-'20-'21-'22
To the members that are posting about what it reads in the owner's manual, keep in mind the OP's C5 may not have it. When I bought my C5 the owner's manual wasn't there. It would be a bit presumptuous to assume the OP has the ability to immediately access an owner's manual.
In Re: to the topic I have never ran a fuel grade below premium.
In Re: to the topic I have never ran a fuel grade below premium.
Drifting
Joined: May 2007
Posts: 1,515
Likes: 14
From: Gig Harbor WA
Start a new thread!
From the owners manual 2003
"Use premium unleaded gasoline with a posted octane of 91 or higher for best performance. You may also use middle grade or regular unleaded gasoline rated at 87 octane or higher, but your vehicle’s acceleration may be slightly reduced. If the octane is less than 87, you may get a heavy knocking noise when you drive. If this occurs, use a gasoline rated at 87 octane or higher as soon as possible. Otherwise, you might damage your engine."
"Use premium unleaded gasoline with a posted octane of 91 or higher for best performance. You may also use middle grade or regular unleaded gasoline rated at 87 octane or higher, but your vehicle’s acceleration may be slightly reduced. If the octane is less than 87, you may get a heavy knocking noise when you drive. If this occurs, use a gasoline rated at 87 octane or higher as soon as possible. Otherwise, you might damage your engine."
Last edited by Jacks02; Feb 23, 2018 at 11:18 PM.
Le Mans Master
Joined: Sep 2013
Posts: 8,900
Likes: 1,074
From: Wisconsin
Not always the case. My local dealership is the only place that did not try to screw me. They have Corvette specialists, tools, experience and resources to do the job. They stand by their work. I have found the local independent shops have little experience with Corvettes will charge more because they don't really want to work on them. For me independents are more dishonest than the dealership perhaps because the dealership wants to sell me another new car.
Instructor
Joined: Sep 2016
Posts: 185
Likes: 153
1 - Premium
2 - Premium
3 - If in doubt, refer to point 1.
The one thing I do avoid is the small independent stations. I'm somewhat suspect as to where they source their gas from, so I'll only use the larger stations, i.e. Shell, Esso, Mobil, etc.
Like C5_PRA, I too have an affinity for the Shell V-Power Nitro+ (91 octane), or the Esso Supreme+ (93 octane) when possible.
2 - Premium
3 - If in doubt, refer to point 1.
The one thing I do avoid is the small independent stations. I'm somewhat suspect as to where they source their gas from, so I'll only use the larger stations, i.e. Shell, Esso, Mobil, etc.
Like C5_PRA, I too have an affinity for the Shell V-Power Nitro+ (91 octane), or the Esso Supreme+ (93 octane) when possible.
Last edited by digi2t; Feb 28, 2018 at 07:53 PM.
