First Oil Change Analysis
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Tuned
Joined: Aug 2017
Posts: 299
Likes: 31
From: SW Utah
First Oil Change Analysis
Here's my first oil change analysis on the factory-fill 10W/30 Motorcraft SD oil. Running Delo 400 LE 5W/40 CJ-4 full synthetic now. Hoping to see the high copper and silicone numbers go down on the next oil change. Might even go with Amsoil for the next oil change. Glad to see no antifreeze and low fuel in this sample.
Junior User
Joined: Aug 2017
Posts: 51
Likes: 1
From: NE Ohio
You can't go by the 1st sample but by the 3rd you should have a good idea of whats going on inside the motor, I've been running Delo 400 LE 5w-40 since I did my 1st oil change so now we wait until my next service. My last Ford lived almost all Its life on Delo 15w-40 so I know its good oil but this synthetic 5w-40 still has me on the fence!
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