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jtubbs 01-11-2017 02:33 PM
Engine Oil
 
This has probably been talked to death.

I have an early 302 putting out nearly 400. With the extra capacity pan, dual filters and oil cooler, its just over 9 quarts. I would like to go to synthetic, but am concerned about the viscosity. AND being an old Ford not used, the leaking problem.

Thanks

tnc110 01-13-2017 07:30 PM
Unless it was run with synthetic from day one, i would stick with conventional.

RET_COP 01-13-2017 09:01 PM
I've used both many times and never had a leak with synthetic. I'm back to regular HR-5 Driven. I like the cling to metal parts in storage it has as well as it's package.

Dwight 01-14-2017 05:44 PM
I had a '90 model 5.0 (302) making over 300 hp & tq to the rear wheels. Drove 1500 miles and changed to synthetic (Mobil One). It did not leak nor could I see it burning oil but it used qt to qt half per 1000. I changed back to dinosaur oil.

My rule is; if the motor was build by the manufacture to use synthetic oil, then use synthetic oil. If not, use the oil the motor was designed to use.

Dwight

Dwight 01-14-2017 05:46 PM
https://bobistheoilguy.com/

G-Pete 01-17-2017 07:17 AM
Quote:
Originally Posted by jtubbs (Post 1413033)
I would like to go to synthetic
Why?:cool:


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