2017 Oil Analysis Thread 6.7 PSD
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Fleet Mechanic
Joined: Aug 2017
Posts: 1,274
Likes: 26
From: St Louis Suburbs
My second oil change using chevron Delo LE 5w/40 CJ-4 rated full synthetic and a Motorcraft oil filter. I’m currently running Rotella T6 5w/40 as the chevron CJ-4 oil may be currently out of production and very hard to find now. It’s interesting to point out the factory fill 10w/30 has a higher level of both zinc and phosphorous over the Delo.
Tuned
Joined: Aug 2017
Posts: 299
Likes: 31
From: SW Utah
Correct, I was just a little surprised the CJ-4 Delo LE just barely met the F1 requirement being a previous API rated oil. It’s strange how there’s no new Chevron F-1 spec approved CK-4 oil as of yet? It’s possible chevron kept making the CJ-4 LE oils longer until they would get an approval by Ford for the new spec? Hard to say.
Also wondering how the Amsoil stacks up against the Lube Engineers diesel oils?
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Fleet Mechanic
Joined: Aug 2017
Posts: 1,274
Likes: 26
From: St Louis Suburbs
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triskit16
1999 - 2003 7.3L Power Stroke Diesel
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Dec 8, 2008 10:02 PM
