the synthetic comes in a couple different weights, which is best for a 98 5.4?
Thanks

And how much do I need, anyone got a part # for the best filter for this application?

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1998 150 SC, Lariat, 5.4, Black with a little silver, 4X4, Stock at this time.

 

I use 5W-30 in Winter; 10W-30 in Summer; and if I ever do any towing in August in the mountains, will use 15W-40 for the pull.

What does Mobil-1 recommend?

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Y2K™ Jim - N8JG@Hotmail.com

Toreador Red, Keyless XLT SC SB 5.4L E4x4 4wDisc/ABS, 3.73LS, Skid, HD 7700# Towing, LT-245's on Chrome, Tube-Steps, Captain's, 6CD, Tonneau, named: "Nick"

 

not sure, want to know what weight synthetic oil others use to get rid of the slap.

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1998 150 SC, Lariat, 5.4, Black with a little silver, 4X4, Stock at this time.

 

ow-30 in the winter months--- 5w-30 in the spring summer months. that is what you should be using. never use any weight heaver than 5w-30. to heavy for our engines.2001 engines are another story. (5w20)


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1997 f150 xlt black extended cab 4.6, 4x2 auto limited slip
mercon v, k&n filter
load lok liner.
17 inch tires saw blade rims goodyear at/s
vent visors
nerf bars black
door crack drivers door

looking for front bush guard for future mod

 

as for the filter mobil 1 filter is very good, I read amsoil is also good reading it one here. kmarts sells the mobil 1 filter part # 210 i think but almost always sold out. $9.99 each

 

Ford sent me a bottle of touchup paint and a quick tips reference guide after I bought my '98. In the section for under the hood it states: engine oil filler cap SAE 5w30 recommended for all temperatures, SAE 10w30 optional. Thats the only reference I have seen for 10w30.

 

I would say that 0w30 or 5w30 will give you the best performance in all conditions.

I use 0w30 year round with excellent results.
As far as filters go stick with a top quality filter, mobile 1 filter is a good one!



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Lubrication Forums

 

I have always used Mobil One Synthetic, 10W-30. I live in Richmond, Near Houston, so that has always been good for me. I put 10W-30 in my mother's Expedition 5.4. Ford reccomends 5W-30 but i like 10W-30, never had a problem.


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Jason E. Duke

Class of 2002 WHOOP!!
Texas A&M University
dodge4x4@ev1.net

http://www.geocities.com/agdodge4x4/index.htm
1996 Dodge Ram 1500 4x4
SLT Ext. Cab, Driftwood
5.9L 360CID V8
3.55 gears
265/75/R16

 

Thanks guys, all I want is to quiet down the slapp.

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1998 150 SC, Lariat, 5.4, Black with a little silver, 4X4, Stock at this time.