$50 Craigslist 360 EXTREME budget rebuild??

Cudafever said

to make a oil analysing really work you need to send in a unused sample for them to set up there standard then send in a sample after X amount of time.
If you're dedicated to this then it might be worth the money.....most of us just change are oil sooner than we are supposed too.

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most oil labs have samples of the majority of oils on the market! most big fleets sample 10% the fleet on a 30 day intervals and alot run there oils 50,000 miles or more with a filter change every 15 to 18,000 miles especially in the 60 series detroit motors, detriot probably has done the most oil study's than any body and only oil thay allow under warrentys is mobile1 delvac because of its ash content, but these detriots are all roller cam and roller rockers,..can debate oils till cows come home and never get experts to agree whats best...damn sure ant gonna agree on a web site ether...