SOT: high mileage motor oil, dino vs blend vs synthetic |
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SOT: high mileage motor oil, dino vs blend vs synthetic |
fixer34 |
Feb 20 2018, 06:51 PM
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#1
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Senior Member Group: Members Posts: 1,087 Joined: 16-September 14 From: Chicago area Member No.: 17,908 Region Association: Upper MidWest |
I know there have been multiple discussions about the 'best' kind of oil to use for our 4's & 6's, but I could use a little education on oils in general.
My daughter has a Chevy Trailblazer with 140k+ on the clock. She usually has one of her 'guy friends' change her oil because she doesn't trust the oil change shops and doesn't know what kind of oil they use. Straight dino oil is getting hard to find and/or as expensive as synthetic. But I seem to recall from years ago that it was not a good idea to go from dino to synthetic without flushing out the entire engine. Still true? And what about the 'blends'? My DD uses synthetic and I just take it to the dealer/local shop for a change. Words of wisdom are welcomed. |
ConeDodger |
Feb 20 2018, 11:28 PM
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#2
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Apex killer! Group: Members Posts: 23,612 Joined: 31-December 04 From: Tahoe Area Member No.: 3,380 Region Association: Northern California |
I’ve been told that if an engine might be heading towards a leak, going synthetic will push it over the edge. But more recently, that they’ve addressed that and it shouldn’t happen.
I was skeptical so I was really worried when our youngest told me he had done the last two oil changes on his 944 with Mobil 1. No leaks so... (IMG:style_emoticons/default/smile.gif) |
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