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Thread: I Learned Something Today about Cars
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Old 07-29-2025, 07:56 AM
Altavia Altavia is offline
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Originally Posted by Topspinmo View Post
What? you still driving flat head ford?

You can’t use straight 30W oil in variable valve timing vehicles. Passages are too small some chain tensioners and other components use oil pressure to operate, then there heat factor that will slug/gum up 30W oil quicker. Most news vehicles use 0-15w oil now.
Especially with newer direct injection turbo's, need to stick with Mfg recomendations - including the alphabet soup list of letters behind the oil type.
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