Quote:
Originally Posted by johnberardi1
I use garbage , garbage , and garbage ....... will try better L-O-F products . It is a 5.7 , and it goes right away ..... 1 second . I don't think Piston slap would go away in a second ?? ahh ..... hopefully lousy oilfilter . I will change Lube products and give an update . 99 Tahoe 5.7 , driven 100 miles a nite delivering newspapers ...stop and go driving ... does not skip a beat .... oil pressure never below 20 @ idle warm .....
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with engine wear getting out of normal range engine slaps/lifter noises are to be expected on a cold worn engine.
replace the oil when at operating temp. could be oil sump screen is gunked up also.
your use is hard on the engine and transmission. replacing the transmission fluid at 20,ooomiles and the engine oil at 3,ooomiles is what this usage would require to keep things from wearing out ..
how much oil do you use every 1000miles ?