dnewton3
Staff member
The following links to F series official Ford manuals:
For the sake of brevity, I didn't list all of them, but feel free to seek out others.
1998 - 5w30 only grade listed
http://www.motorcraftservice.com/pubs/content/~WOWF12/~MUS~LEN/36/98f12og1e.pdf
1999 - 5w30 only grade listed
http://www.motorcraftservice.com/pubs/content/~WOXF12/~MUS~LEN/36/99f12og1e.pdf
2000 - 5w20 only grade listed
http://www.motorcraftservice.com/pubs/content/~WOYF12/~MUS~LEN/36/00f12og5e.pdf
2002 - 5w-20 only grade listed
http://www.motorcraftservice.com/pubs/content/~WO2F12/~MUS~LEN/36/02f12og3e.pdf
2004 F250 - only 5w-20 grade listed
http://www.motorcraftservice.com/pubs/content/~WO4F23/~MUS~LEN/36/04f23og3e.pdf
2006 F350 - only 5w-20 listed
http://www.motorcraftservice.com/pubs/content/~WO6F23/~MUS~LEN/36/06f23og2e.pdf
Now, I don't work at Ford any longer, but when I did, I had direct access to the engineering databases. Your inference that somehow my access was limited is incorrect; anything that was posted into the engineering database was available to me, or any approved access engineer, worldwide. I NEVER recall EVER seeing anything but 5w-30 or 5w-20 spec'd for Triton engines. Never have I seen 10w-40 or 20w-50 in any external or internal documents. I could be wrong; and that's why I'm asking for your proof. Right now, I don't see anything to back up your claims.
You anonymous sources to the contrary ...
For the sake of brevity, I didn't list all of them, but feel free to seek out others.
1998 - 5w30 only grade listed
http://www.motorcraftservice.com/pubs/content/~WOWF12/~MUS~LEN/36/98f12og1e.pdf
1999 - 5w30 only grade listed
http://www.motorcraftservice.com/pubs/content/~WOXF12/~MUS~LEN/36/99f12og1e.pdf
2000 - 5w20 only grade listed
http://www.motorcraftservice.com/pubs/content/~WOYF12/~MUS~LEN/36/00f12og5e.pdf
2002 - 5w-20 only grade listed
http://www.motorcraftservice.com/pubs/content/~WO2F12/~MUS~LEN/36/02f12og3e.pdf
2004 F250 - only 5w-20 grade listed
http://www.motorcraftservice.com/pubs/content/~WO4F23/~MUS~LEN/36/04f23og3e.pdf
2006 F350 - only 5w-20 listed
http://www.motorcraftservice.com/pubs/content/~WO6F23/~MUS~LEN/36/06f23og2e.pdf
Now, I don't work at Ford any longer, but when I did, I had direct access to the engineering databases. Your inference that somehow my access was limited is incorrect; anything that was posted into the engineering database was available to me, or any approved access engineer, worldwide. I NEVER recall EVER seeing anything but 5w-30 or 5w-20 spec'd for Triton engines. Never have I seen 10w-40 or 20w-50 in any external or internal documents. I could be wrong; and that's why I'm asking for your proof. Right now, I don't see anything to back up your claims.
You anonymous sources to the contrary ...
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