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So I made a discovery I’m not too pleased with. I noticed just about every oil company is touting reduced phosphorus on their main oil grades which means greater catalyst life but reduced anti wear additive. Mobil 1 is the only company that openly shares their zddp information which I highly...

Was time to do an oil change on my 1990 Chevrolet C1500 350 V8 which is in mint condition btw. Originally put in an order for Amsoil ss 5w30 but 5 qts came out to be a little over $77 by the time shipping and tax was added...and this is preferred customer pricing too. Later in the day I went to...