Synthetic oils

A-BOMB360 said

synthetics is for people to lazy to change there oil. same deal as platnium/iridium plugs.
I use the cheapest oil wallmart has in the 10w30 range. and I change it every 3000miles
like clockwork. never had any oil related problems in anything for the last 20 years.

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Tear down 2 engines after 100K one Synthetic, one Conventional! This may be the most absurd thing I've heard!

I've changed the oil every 3K in my 360 with conventional name brand oil. I rebuilt it at 100K. THICK IN SLUDGE EVERYWHERE! I helped my dad rebuild his Jag XKE 3.8 at 120K which he had used synthetic from day one after his last rebuild, changing every 5K. NO Sludge.