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2002 chevy trailblazer_ls
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Discussion Starter · #1 ·
Just wondering. The local Chevrolet dealership has seen 6 TB of years 02 - 04 with burned exhaust valves over the last several months. They claim it is sorry local 87 octane fuel and are recommending the use of 89 for this reason. The area I live in is a small rural city with two fuel distribution suppliers serving 4 stations.

Has anyone heard of this?
 

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2003 chevy trailblazer_ls
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5,268 Posts
news to me..
Dont think Ive heard anyone else complain about this
 

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2003 gmc envoy_slt
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527 Posts
Just wondering. The local Chevrolet dealership has seen 6 TB of years 02 - 04 with burned exhaust valves over the last several months. They claim it is sorry local 87 octane fuel and are recommending the use of 89 for this reason. The area I live in is a small rural city with two fuel distribution suppliers serving 4 stations.

Has anyone heard of this?
send in your pcm to get a tune to 89... that way you have an even better reason to use 89.. but i have not heard anything like this either...
:m2:
 
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