09 Chevrolet 5.3ltr switch to syn?

[JCM35]

I work at the Exxon Mobile plant in Illinois. There was literature that was shown to me that stated such. I have no idea of the chrysler status.

 

[Ryan02SS]

I changed my factory fill at 1100 miles. Went with M1 T@SUV 5W-30 with a M1 113 oil filter. Now at 5K miles it runs beautiful and burns no oil. I have %19 left on the OLM so its going to be change time soon.

My 02 Camaro SS LS1 came FF with M1 5W-30.

These new Gen IV 5.3L's are awesome engines. I love mine. Very powerful with the #243/799 LS2/LS6 cylinder heads. Also the most fuel efficient out there. I've knocked out 20-21MPG @ 70 on the Interstate a dozen times.

 

[live_to_hunt]

I have 92K on my 5.3L I bought it used over a year ago. I run Max life I have no oil leaks or consumption good luck with your truck. I figue with 92K on my truck why start running synthetic now..

 

[dave1251]

For the 5.3 you can use conventional and you will grow tired of your truck before the engine goes. As long as you maintain the proper OCI.