which motor oil do i use?

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03-25-2011, 05:48 AM

#11

bobkyle2

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In my 98 4.6 i ran Royal purple 5\30 and a K&N oil filter...Never had a problem with the engine 240k when i sold it...It also had a rough life.... Around 150k miles i switched to a 10\30 (if i recall)

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03-25-2011, 07:55 AM

#12

akdoggie

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Personally I use Motorcraft 5w20 SemiSynthetic and a Motorcraft oil fiter. The Motorcraft oil filter has the check valve so the engine has oil immediately. I used to be a Valvoline user, but with my last 2 Fords, I've kept with factory parts.

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03-25-2011, 08:54 AM

#13

otto457

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Quote:

Originally Posted by piston91

For your owners manual

https://www.fleet.ford.com/maintenan...ls/default.asp

Now ford recomends 5w-30 for the older 4.6 liter. If you do not believe me read your owners manual. As for synthetic vs semi synthetic. More or less personal preference, and budget. There are multiple links here.

https://www.fleet.ford.com/maintenan...ls/default.asp

http://www.f150online.com/forums/v8-...-oil-type.html

Those are a few. Just google "what oil to use". While your at it google "orange can of death" this refers to fram filters a no no for our engines.

The 5w30 is still in the manual but it has since been updated to 5w20 for all 97-03 Triton motors. That link to f150online, they are referring to 3v 5.4L for the 04-08 trucks.

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03-25-2011, 04:14 PM

#14

Spencer2009

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i use 10w-30 castrol gtx in mine with a fram filter

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03-25-2011, 04:19 PM

#15

bradseabridge

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GET THAT FRAM OUT OF THERE!!!!!

Also Bobkyle, you fell into the hype of Royal Purple?! Shame on you!

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03-25-2011, 05:49 PM

#16

Def4life

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Quote:

Originally Posted by STX-9Pointer

Then what is the over all consensus of preferred oil filters and oil??
Just baught '05 STX two weeks ago... want to keep her in great working order!!!

Get 6 qts of Motorcraft 5w-20 and Motorcraft 820 oil filter. I've always used Motorcraft oil and filters in my Ford's and never had any hassle. It's also recommended by Ford so...