Gasoline
#41
Burning Brakes
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
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Yello95 (02-21-2018)
#45
Le Mans Master
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
#46
Advanced
I try to only buy at Top Tier stations, 93 octane or higher. That being said I have ran 91 a couple of times and even 89 and noticed no difference. Just a creature of habit.
#47
Burning Brakes
Steve
#48
Le Mans Master
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
#49
Pro
Most of the time Walmart/Murphy 87 and a can of Seafoam about every 4 th or 5th tank up. I drive very easy and if I would hear the engine protesting, I'd step up to plus.
#50
Melting Slicks
Member Since: Aug 2013
Posts: 2,491
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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.
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ArmchairArchitect (02-27-2018)
#51
Drifting
#52
I don't know what that dealer is talking about!
Premium only! Shell V-Power for me personally. Get a performance car - treat it like a performance car.
Oh, and welcome aboard!
Premium only! Shell V-Power for me personally. Get a performance car - treat it like a performance car.
Oh, and welcome aboard!
#53
Drifting
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; 02-23-2018 at 11:18 PM.
#56
Le Mans Master
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.
#58
Drifting
#59
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; 02-28-2018 at 07:53 PM.