Quote:
Originally Posted by blueash
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The 29.95 service used conventional motor oil, which nearly all vehicles on road don’t take conventional oil due to variable valve timing, which have tiny oil passages to advance valve gear adjusters. conventional motor oil Cokes up quicker and viscosity thicker not good for modern engines. Plus lucky to get 3K on conventional motor oil before it severely starts breaking down after time and miles. Usually synthetic oil changes are twice the 29.95 due to higher price of synthetic oil and that’s using the cheaper brand synthetic oils.