Severe Duty
Fleet Mechanic
Joined: Feb 2018
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Originally Posted by CP Dubbs;[url=tel:19806514
19806514[/url]]T6 5w40 is a waste if you follow the OLM and never start below 10 degrees.
The T4 15w40 is more than adequate for whatever you could put the truck through unless you experience Arctic temps.
All that being said, you going with 5w40 is fine, and will cover you well. Just no need for the extra expense.
The T4 15w40 is more than adequate for whatever you could put the truck through unless you experience Arctic temps.
All that being said, you going with 5w40 is fine, and will cover you well. Just no need for the extra expense.
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ChiefGeek
1999 - 2016 Super Duty
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Nov 22, 2020 03:33 PM
