Fuel type?
03-23-2017, 04:34 PM
#1
Heel & Toe
Thread Starter
Fuel type?
Ok so my area primarily only has 91 octane fuel, do I have to add any additives to the fuel or is it ok ? Car is a 2010 grandsport stock
03-23-2017, 04:41 PM
#2
Team Owner
No, it's okay.
2010 owner's manual, page 6-7.
2010 owner's manual, page 6-7.
If the vehicle has the 6.2L V8 engine (VIN Code W), use
premium unleaded gasoline with a posted octane rating
of 91 or higher.
If the vehicle has the 6.2L V8 engine (VIN Code T)
or the 7.0L V8 engine (VIN Code E), use premium
unleaded gasoline with a posted octane rating of 91
or higher.
If heavy knocking is heard when
using gasoline rated at 91 octane or higher, the engine
needs service.
premium unleaded gasoline with a posted octane rating
of 91 or higher.
If the vehicle has the 6.2L V8 engine (VIN Code T)
or the 7.0L V8 engine (VIN Code E), use premium
unleaded gasoline with a posted octane rating of 91
or higher.
If heavy knocking is heard when
using gasoline rated at 91 octane or higher, the engine
needs service.
Last edited by Vette_DD; 03-23-2017 at 04:41 PM.
03-23-2017, 04:49 PM
#4
Melting Slicks
No need to add additives. All we have around here is 91 as well; when on road trips, I use 93 when available.
Here's a link to the Owner's Manual for your year: http://www.c6registry.com/technical/...upe_owners.pdf
Here's a link to the Owner's Manual for your year: http://www.c6registry.com/technical/...upe_owners.pdf
03-23-2017, 05:40 PM
#5
Race Director
Member Since: Apr 2016
Location: Pittsburgh
Posts: 10,677
Received 4,712 Likes
on
2,998 Posts
2023 C6 of the Year Finalist - Unmodified
2022 C6 of the Year Finalist - Unmodified
2021 C6 of the Year Finalist - Unmodified
No need to add additives. All we have around here is 91 as well; when on road trips, I use 93 when available.
Here's a link to the Owner's Manual for your year: http://www.c6registry.com/technical/...upe_owners.pdf
Here's a link to the Owner's Manual for your year: http://www.c6registry.com/technical/...upe_owners.pdf
03-23-2017, 07:05 PM
#6
Race Director
Modern cars will just pull timing if they detect knock from lower grade gas. Heck, they probably have separate fuel tables for 87, the ls2 did so I can't imagine the ls3 doesn't.
03-23-2017, 08:53 PM
#7
Team Owner
Member Since: Mar 2004
Location: Oklahoma City OK
Posts: 58,259
Received 1,675 Likes
on
1,298 Posts
C6 of Year Finalist (appearance mods) 2019
91 octane is all that we have around here too. It's fine, no problem.
03-23-2017, 09:21 PM
#8
Racer
The one thing you have working for you, is that 91 octane is a minimum of 91 octane, which is randomly tested by weights and measures to be accurate.
Most fuel stations have 2 tanks. One holds 87 octane fuel (as low as 85 in the rockies) and the high octane tank holds 93/94 depending on where you are.
What's this mean for the consumer buying 89, 90, 91, and 92 octane fuel at the pump? It means that the higher octane requirement you call for when making your selection, the more of the higher octane fuel you get. In reality, machines are good but nothing is 100% accurate. You could be getting 92
Most fuel stations have 2 tanks. One holds 87 octane fuel (as low as 85 in the rockies) and the high octane tank holds 93/94 depending on where you are.
What's this mean for the consumer buying 89, 90, 91, and 92 octane fuel at the pump? It means that the higher octane requirement you call for when making your selection, the more of the higher octane fuel you get. In reality, machines are good but nothing is 100% accurate. You could be getting 92