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post #7 of (permalink) Old 04-18-2017, 10:17 PM
Shooter F6B
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Join Date: Nov 2014
Location: Hillsboro MO
Posts: 1,013
Quote:
Originally Posted by Rusty360 View Post
I normally use Mobil 1 (15/50)

Just curious the manual calls for 10W30 or 10W40 why such a heavy weight oil?
Glad you asked it. Its not good to use too thick of a oil. Hurts fuel mileage and engines designed to use a thinner oil sometimes will not get that thicker oil to where it needs as fast in cooler weather.
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