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survey: 5w-30 or 10w-30

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Old Sep 8, 2001 | 02:40 PM
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ssanto's Avatar
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survey: 5w-30 or 10w-30
what year is your f-150? engine? oil?... i have a 97 w/ 41k miles, should i be using 5w-30?
 
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Old Sep 8, 2001 | 02:50 PM
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97, 4.6, 10-30
 
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Old Sep 8, 2001 | 05:22 PM
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'99, 4.2L, Mobil1 5W-30. Will probably go with 0W-30 this winter.
 
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Old Sep 8, 2001 | 05:50 PM
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I read some where that all ford motors up to 00' should now use 5w-30. I believe it was a TSB.

I have always been told to never use 10w-30 in place of 5w-30.

Good luck!
 
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Old Sep 8, 2001 | 07:52 PM
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hcmq,

The TSB can be found in this thread ...
https://www.f150online.com/forums/sh...oil+introduces

Scroll down to a post by Y2kXLTSport.
 
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Old Sep 9, 2001 | 01:16 AM
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2000 5.4 5W30.
 
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Old Sep 9, 2001 | 01:29 AM
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1999 4.6L Mobil 1 5w30
 
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Old Sep 9, 2001 | 02:38 AM
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My dealer services my truck so I really don't know what weight oil they are using at present. I wouldn't be surprised if they're putting in 5W-20 which is fine with me. It's what Ford says is ok to use in my '99.
 
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Old Sep 9, 2001 | 08:44 AM
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1997 4.6 31,000 miles

0w30 synthetic
 
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Old Sep 9, 2001 | 09:06 AM
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'99 4.6L - Mobil 1 5W30 w/K&N Performance Gold filter
 
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Old Sep 9, 2001 | 10:01 AM
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2000, 5.4L, ONLY 5W-30 oil (Mobil 1). I would never use 10W-30 in my truck.
 
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Old Sep 9, 2001 | 10:10 AM
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99, 4.6 Mobil 1 5W-30, 23,000 mi. Plan on switching to 0W-30 post warranty.
 
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Old Sep 9, 2001 | 10:12 AM
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From: INDIANA,.....USA " Where more than Corn grows in Indiana"!!!
Thumbs up
1997 4.6L V8 nothing but 5W30, the same as my 1996 T-Bird & 1991 Escort 1.9L 4cyl.
Lariat#1
 
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Old Sep 9, 2001 | 07:38 PM
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Post survey: 5w-30 or 10w-30
Maintenance manual says use 5W30, that's what I've always used.

1998 F-150 XLT
4x4 Off-Road
55,000
4.6L

Still going strong
 
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Old Sep 9, 2001 | 08:13 PM
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'97 Romeo 4.6L, 5w-30 Valvoline Durablend Oil. Manual says 5w30, thats what my truck gets... 133,000 miles and running strong....
 
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