MDPD23

I noticed on the list of top tier retailers that Sunoco Canada is listed by not Sunoco.
Anybody have any info on that??

MikeSVT04

Shell v power or sunoco 93...They don't have 94 anymore in my area....

GARYFINN

I hate to tell you this chief but the Z51 package doesn't demand higher octane fuel. just sayin

Wayne88

The Z51 package is mostly a different suspension, and an oil cooler line. I has nothing much to do with the engine.

coolcat

I put Shell 93 octane V-Power gasoline in my 08 coupe.

Don-Vette

LOL, I like this guy,back in the 90's when I had my 72'Buick GS Stage1,I put some 112 racing gas in the 455 and went to cruise night. Cruising the parking lot idling, every ones eyes were burning.

Ursoboostd

I knew there would be some funny comments about the Z51 as soon as I read the original post.

GCD1962

"Top Tier Gas" is a marketing scheme. Buy any premium from a brand name. What is even more important is to buy gas from a high volume station - less chance of water or contamination in tanks.

jimmybobby

Z51 definitely needs nitromethane. If it's not available, use avgas. Last resort would be Sunoco 94.

easyrider13

Here's a list of Top Tier stations:
http://www.toptiergas.com/retailers.html

I have an older Shell credit card that gives me 5% back on gas purchases. I think the offer on current cards is 5 cents back per gallon.

jpee

It seems like everyone who posted here never "Read The FINE PRINT" in the owners manual


Pg. 67 paragraph 3 sec "C" Item #4 ... "If your C6 is LMB it recommended to use 97 or higher octane as these were built to a Higher Standard than your run of the mill Corvette !!

hawkgfr

No wait...he's right but only if they have the z51 BADGE.

laconiajack

I think anything over 91 octane is a waste of money, but if you think otherwise go for it!

airbill2

this is tooo funny!!

airbill2

Shell V-power here.

dads toy

wait, I was told that Z51's could run on deisel or just plain horse droppings. its why I went with the non Z51.

coryvte

Well if a z51 takes 109 octane, what does the F55 require?

Oh, and what octane does is require if I have the Bose radio?

hawkgfr

BOZOHOL for the Bose cars...

cmonkey713

I run 93 in mine, all the time.

JoesC5

I think the way GM thinks and says in my owners manual..

"If the vehicle has the 6.2L V8 engine (VIN Code R) or the
7.0L V8 engine (VIN Code E), use premium unleaded
gasoline with a posted octane rating of 91 or higher. For
best performance, use premium unleaded gasoline with a
posted octane rating of 93."