I'm with Spike, Mobil One. Change it every 5-7K. I change it myself and the stuff looks good to go another 5k. My mechanic told me you could just change the filter and run 15k if you wanted to. When I was a kid and Mobil One came out they marketed it as being good for over twice the mileage of conventional. The quickie lube turds always tell you to change every 3,000 miles but that's garbage. They always try to pull that on my wife, she's trained well and ignores those stickers on the windshield. Her van has 125k on it and uses no oil.
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True Blue 2002 GT Premium 4r70W
1/8 8.205@ 84.780
1/4 12.874@ 107.20
Bolt on's n/a
NMRA #7703
Dyno'd at Modular Depot 251 hp. 291 Tq.
4.30's, 3500 Stall converter, Steeda upper & Lowers, Tokico drag struts, M & M frame connectors, P & A valve body, C&L plenum, Accufab 75mm TB, Jet Hot Long tubes, Hooker O/R X, Steeda catback,SCT tune,Steeda pullies.
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