E450 V10 oil
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6th Gear
Joined: Jan 2015
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E450 V10 oil
i have a 2000 ford E450 6.8L gas burner under a 24' rv. i have always used 5-30w oil and changed every 3-4 thousand miles. the rig has 120,000 miles on it and is using some oil these days. my recent 4,000 mile trip it used 1.5-2.0 quarts. question is could i safely change to 10-30w. thanks barthboy2
Fleet Mechanic
Joined: Oct 2017
Posts: 1,704
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From: Southwest Ohio
Never change to a different oil viscosity due to the engine burning/using oil. The internal tolerances were engineered for a specific weight oil. And correct me if I am wrong but doesn’t the V10 specify 5w-20?
— Dave
— Dave
Elder User
Joined: Sep 2016
Posts: 813
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I know specifically, some will go to a higher weight oil to buy some time.
This was to gain some time (amount of time depends) before a new motor is installed.
What's sad is this motor with only 120,000 miles should not be going out this soon. Almost, Infant Mortality..
This was to gain some time (amount of time depends) before a new motor is installed.
What's sad is this motor with only 120,000 miles should not be going out this soon. Almost, Infant Mortality..
Fleet Owner
Joined: Jan 2004
Posts: 26,007
Likes: 575
From: Brentwood,CA
Has the PCV been replaced? It's a common cause of sudden oil loss in a modular engine. I wouldn't change from the 5w30 if it's made it this far. Also all 6.8 engines are currently specified to run 5w20 and have been since 2001 MY, 5w20 is even used in the F650/750 Trucks.
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