New engine, synthetic OK?
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Joined: Nov 2002
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From: Boise, ID
Car: 90 Camaro RS
Engine: 6.3L 383 V8
Transmission: 700R4
New engine, synthetic OK?
I've heard in the past that you aren't supposed to use synthetic oil when you first put together an engine. Is this an old wives tale or not?
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From: UofA(Tucson), AZ
Car: 92 Precision Red Firebird
Engine: v6->357 vortec xe262h rpm intake
Transmission: t5-> t56
Axle/Gears: 10bolt 3.42s
you should break it in with 10w-30. and go for a good 500miles and then switch to synthetic.
Just my 2cents
Just my 2cents
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Joined: Jul 2005
Posts: 477
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From: Manchester: UK
Car: Was 3rd Gen now MustangGT
Engine: 302
Transmission: Auto
Axle/Gears: 3:73:1
Same as above, in fact unless its a hard used car and its getting real abuse, semi synthetic is more than suitable for most. 
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