[QUOTE=moose-e-man].

.......If you run Chevron's 91 octane you get the additive "Tecrolene". It has proven to keep the injectors clean as well as the combustion chambers.
Less deposits......

Hey moose-e-man....


According to GM's TSB, ANY top-tier gasoline will provide the necessary additive to keep the engine, i.e., valves, injectors clean.

Chevron is one of the recommended gasolines containing the additive. It comes in all grades, not just "premium".....at least in my state and others that I have traveled.

 

I'm partial to Shell Vpower myself because our Chevron stations around here are fairly run down it seems.

 

You know, I thought I would post this TSB. It, somewhat, fits into this thread and most people are not aware of the bulletin. Moderators, if I am incorrect in this post, please move it elsewhere.


Issued: Fri, Jul 21, 2006
TSB Number: 04-06-04-047F
Title: Fuel System - TOP TIER Gasoline Information

 

I run shell v power 91. Never seen 93 octane in so cal

 

Shell V-Power here too. Personally, I won't run Chevron techron unless it's an absolute emergency. I had a Jeep with a 401 V8 in it that was pretty built back in '96. After a month of running on brand new plugs with Techron, I pulled them and found lots of yellow deposits - never again! Put some new Autolites in there and ran on Shell for a month - nice and clean.

I'm sold on Shell V-Power for now.

 

:redXdance

All I see is the red X dance :redXdance

 

My opinion:
i think the compresion ratio and temperture the engine runs at probably just justifies the 91 octane recommendation. Chevy probably made it optional cause the pinging encountered is minor and will take many miles before engine damage shows up;undoubtably after the warrantee is expired.

 

Is anyone else having trouble with my post regarding the TSB not showing up.

I was at 2 different friends computers and they had it

 

Me, all I get is red Xs on both my home and work computers.

 

Same here