Ford oil spec WSSM2C171-E
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Laughing Gas
Joined: Oct 2014
Posts: 962
Likes: 114
From: Middle TN
Ford oil spec WSSM2C171-E
After probably putting too much thought into this, I have decided on filling my truck with Mobil 1 5W40 TDT. It has all the right markings being a CJ-4, put the only spec online I could find for Mobil 1 is WSSM2C171-D, where as the Ford spec in my manual ends in 171-E. I assume this is a revision over the -D. Does any body know if Mobil1 5W40 TDT meet the newer spec??
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Laughing Gas
Joined: Oct 2014
Posts: 962
Likes: 114
From: Middle TN
You are both correct. I see Rotella mentioned on here a lot. I guess I am just too old school; was never a fan of shell/penzoil/quaker state. I wanted mobil because of the class 4 synthetic vs rotella as a class 3. In the end. Rotella has all the certs. and draining it every 5000 miles, shouldn't matter anyway. Thanks everybody.
Laughing Gas
Joined: Jan 2006
Posts: 1,045
Likes: 5
From: Gig Em, Tx
You are both correct. I see Rotella mentioned on here a lot. I guess I am just too old school; was never a fan of shell/penzoil/quaker state. I wanted mobil because of the class 4 synthetic vs rotella as a class 3. In the end. Rotella has all the certs. and draining it every 5000 miles, shouldn't matter anyway. Thanks everybody.
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