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5w-20 engine oil in Ford 5.4 Triton?
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Rich
Posted 2/1/2009 03:43 (#592023)
Subject: 5w-20 engine oil in Ford 5.4 Triton?



Kansas
Did I read that 710 cap right? I havn't had time to strum through the owners manual much but I noticed today with the hood up changing the "boob" air filter that I thought it read 5w-20 oil.

How's come no 5w-30?

Did I read that correctly?

Tolerances are that tight?

I'm really surprised about that.
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JD4250
Posted 2/1/2009 05:50 (#592027 - in reply to #592023)
Subject: Re: 5w-20 engine oil in Ford 5.4 Triton?


you read it right rich .i have the same rig and thats what it says to i use 5 w 20 seems to be ok
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Matt neoh
Posted 2/1/2009 06:06 (#592031 - in reply to #592023)
Subject: RE: 5w-20 engine oil in Ford 5.4 Triton?


thats what mine is, wish it was 15w-40 so it would be the same as every thing else here.
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Rockhead
Posted 2/1/2009 08:09 (#592065 - in reply to #592023)
Subject: RE: 5w-20 engine oil in Ford 5.4 Triton?



Chippewa County, MN
When I worked at the local auto repair shop, we switched to 5W-30 for warm weather and those pulling trailers.  I'm not sure if there was a tech bulletin on that or not.  There were a few folks having problems with heavy use using the lighter oil. 
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Ken
Posted 2/1/2009 08:51 (#592102 - in reply to #592023)
Subject: RE: 5w-20 engine oil in Ford 5.4 Triton?


NW Iowa
Yep Rich 5-20 is right I've used in my Fords since I had a 94 Tarus, I use the Ford oil it's part synthetic, on my 2nd pickup, I suppose if I was pulling a trailer in the summer I might use the 5-30 but the with it being part synthetic I might not either, can't remember what the owners manual says about it
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Adrian
Posted 2/1/2009 09:05 (#592113 - in reply to #592023)
Subject: Grit your teeth and do it.



South Georgia
I've been using our regular old Delo 15W-40 in mine for I don't know how long, now. Truck has 156,000 miles on it. I figure my gas mileage on my fuel receipts, and the ones that are in the truck now ranged from 10.7 to 13, with the 15W-40 in it. Last time I changed the oil, on a whim, I used the 5W-20, and since then the mileage has ranged from 12.3 to 13.5, all similar driving. Short trip, stop and go, riding around fields, that sort of stuff.

If you'd have told me that the weight of the motor oil makes a difference, I'd have laughed in your face, but I've got it on my fuel receipts.

No, the 15W-40 won't hurt a thing, though. Ford don't give you a 'real' oil pressure guage, so I have no idea of the pressure difference, but I've run the heavy stuff in it a long while with no troubles.

Adrian
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Mustard
Posted 2/1/2009 10:16 (#592189 - in reply to #592113)
Subject: 5W-30 is just fine IMO



Kindersley Sk.
Ford went to suggesting the use of 5W-20 solely for the reason of fuel economy. By switching from 5W-30 to 5W-20 they gained a fleet average .00000something MPG which was enough to satisfy some EPA or CAFE requirement.
I've used 5W-30 in my Windstar van for the past 6 years and it is still running fine. Since I plan on keeping this van on the road forever (or until the kids are gone), I'm willing to give up the minuscule fuel savings that 5W-20 gives, for a little more engine protection.
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tommyw-5088
Posted 2/1/2009 10:37 (#592219 - in reply to #592189)
Subject: Re: 5w-20 engine oil in Ford 5.4 Triton?


Central Texas
little honda cvic work car (2001) has a 5 w 20 spec ,i refuse to use HY -tran in an engine :) .

i use 5-w 30 mobil 1 ,change at about 5 k miles ,101,000 miles so far .

it does get hot here in summer ,i did not want 20 weight oil in doing stop and go traffic at 105 degrees .

if i lived in michigan i might use light oil in winter ,but here for example it was 65 yesterday ,HY TRAN would get too thin.
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IowaDan
Posted 2/1/2009 10:53 (#592236 - in reply to #592023)
Subject: Re: 5w-20 engine oil in Ford 5.4 Triton?


Winterset, Iowa
I run 5w-20 Mobil 1 in mine. I asked a friend who worked as a Ford Service Manager for over 35 years about this oil viscosity thing and he said the tolerances on the new ford engines are so close that the 20w is recommended. I suppose you could use the heavier stuff and let your engine wear into it. I think Honda was one of the first manufactures to start using the close tolerances and 20w oil.
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Delmarva Ag
Posted 2/1/2009 10:55 (#592237 - in reply to #592189)
Subject: RE: 5W-30 is just fine IMO



Seaford, Delaware
Even though we offer one to satisfy API requirements for an ILSAC G4 specification, I never recommend using a 5w-20 oil. As Mustard stated, it's all about fuel economy and not about engine durability. We have seen numerous premature valve train wear cases using 5w-20 oil in police fleets from around the country. It has a lower viscosity than a 5w-30 or 10w-30 engine oil. Remember, no matter how hot or extreme the conditions are, this oil will never get thicker than a 20 weight. Rich, from what little I know about you from reading your posts, I assume you don't baby your equipment so I would use 15w-40 unless it is still under warranty. I guess the difference in 5w-20 versus 10w-30, would be like tossing a 200 pound waitress over your head instead of a 100 pound one! LOL

Alan
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Gerald J.
Posted 2/1/2009 11:25 (#592269 - in reply to #592236)
Subject: Re: 5w-20 engine oil in Ford 5.4 Triton?



I bought my 4.6 Triton with 21,000 miles on it. Initially I didn't have an owner's manual and I noticed it had the sound of rod bearings rattling like they were loose. I added a quart of 15 W40 and it lost that rattling sound. Its ('98) manual calls for 5W30. Now that Ford's oil is a synthetic blend it doesn't have so much rattling noise or lifter clatter at start with 5W30.

The oil pressure sender is just a switch so the pressure gauge on the dash just shows present or absent. That's almost useless, a poorer indicator than an idiot light, though it has an oil light too.

I have a VW Golf that the factory wants a 0W40 Mobil 1 synthetic or their house brand, but expects it to run 10,000 on an oil change. I've tried that, ran it very low on oil because it burned it. Motorcraft 5W30 stays in much better, may cost some fuel mileage, but I'd rather change $2.79 a quart oil every 5000 than $6 a quart oil at 10000 miles after adding more than half an oil change in that 10,000 miles. Besides its hard to find an oil filter that will last that long.

Gerald J.
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Jbatmick
Posted 2/1/2009 11:35 (#592275 - in reply to #592269)
Subject: Re: 5w-20 engine oil in Ford 5.4 Triton?



Hastings, Florida
Here in Florida I use Rotella 15/40 in everything except wife's car,and that is a Porsche. 2000 Ford 5.4 f-150 has over 270 thousand, no problems. N-14 cummins, tractors,cars, lawn mowers, generator, everything gets Rotella.Works well for me.
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Fla Veggie Farmer
Posted 2/1/2009 12:46 (#592349 - in reply to #592275)
Subject: Re: 5w-20 engine oil in Ford 5.4 Triton?


Southeast Florida
We were using 15-40 in our f-150's. One of the engines took a dump under warranty and Ford voided it. We got educated real quick why. With the OHC the heavier oil doesn't lubricate the cams and valve terrain quick enough on start ups. This truck belonged to a harvest foreman that was constantly in and out of his truck.

The tolerances are very tight on them engines. In Palm Beach County it never gets cold and get really hot in summer, 5-20 worked just fine on the rest of them truck for 200K miles.
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farmdude
Posted 2/1/2009 12:53 (#592360 - in reply to #592349)
Subject: Re: 5w-20 engine oil in Ford 5.4 Triton?


Good point veggie farmer. Id say 5w30 in the summer. 5w20 in the winter. Rich this is on your superduty isnt.Thats what I would do.. Its not uncommon to get over 300,000 miles out off these Triton motors with little problems using the oil they recommend. But being a Ford has a lot to do with it. Them motors are built tough like the truck.
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ayrporte
Posted 2/1/2009 15:51 (#592576 - in reply to #592360)
Subject: Re: 5w-20 engine oil in Ford 5.4 Triton?


Eastern Ont
Isnt the oil pressure used for ignition timing thats why the thin viscosity
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Jon Hagen
Posted 2/1/2009 17:42 (#592704 - in reply to #592349)
Subject: Re: 5w-20 engine oil in Ford 5.4 Triton?



Hagen Brothers farms,Goodrich ND
Fla Veggie Farmer - 2/2/2009 11:46

We were using 15-40 in our f-150's. One of the engines took a dump under warranty and Ford voided it. We got educated real quick why. With the OHC the heavier oil doesn't lubricate the cams and valve terrain quick enough on start ups. This truck belonged to a harvest foreman that was constantly in and out of his truck.

The tolerances are very tight on them engines. In Palm Beach County it never gets cold and get really hot in summer, 5-20 worked just fine on the rest of them truck for 200K miles.


A few years ago we set up for bulk oil and had the tanks filled with #30 and #15-40 , thought it would lower costs a bit and not having to handle 30 or 55 gallon drums. Came to the last late fall oil changes, and was gravity filling gallon oil measures out of those bulk tanks.
I got real nervous when I realized that at 0 F the gallon measure took as long to fill with 15-40 as it did with #30, I suspected that the oil company had made a mistake and both bulk tanks were full of #30.

I complained to my oil dealer who said, "pull a sample from both tanks and we will sent them in to be analyzed"
We did that and the reports came back that the oils were as intended, # 15-40 and #30.
That had me totally puzzled, as I could not understand why a multi weight oil that was supposedly near a 15 wt when cold, would not flow into the oil measure any faster than straight #30 ??

My oil dealer got out his oil spec book and we found that 15-40 and straight #30 have an almost identical pour point at 0 F.

Since that all the gas engine cars and pickups that have to run in ND winter temps get Mobil 1 # 0W-30 synthetic oil. They start easily in winter and get instant oil pressure.
We use it all year round. No worse oil consumption than with heavier oil , even when doing heavy trailer pulling in the summer heat.

Putting thick oil in engines designed for thin oil may be like I did to a Chrysler 4 spd manual trans in one of my dirt track race cars. I saw that the original lube in that trans was some water thin red junk (ATF I later found out). I thought, No way for hard use behind a 440, I filled it with # 90 gear lube. What I did not understand was that trans was fitted really tight to use ATF as a lube.
After two laps with the # 90, I seized a gear into the main shaft.
$300 for a new gear and main shaft and a refill with type F ATF got it going again and had no problems with that thin ATF in there behind a gaggle of strong 426 and 440 engines. That was an expensive and embarrassing lesson on substituting a thicker lube than what was specified.
;-(
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Adrian
Posted 2/1/2009 20:47 (#592878 - in reply to #592237)
Subject: RE: 5W-30 is just fine IMO



South Georgia

You might be right, Alan, but if Ford's comfortable enough that it'll go 100,000 miles (enough to get a vehicle out of extended-warranty range), and since I can actually see some real, calculate-able fuel mileage differences, then I'm gonna stick with the thin oil.  During peanut season, I may go up to something a little thicker, but otherwise, I'm gonna live life on the edge, and use the thin stuff.  Sealed

 

Adrian

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deeretech1989
Posted 2/3/2009 10:16 (#594660 - in reply to #592023)
Subject: RE: 5w-20 engine oil in Ford 5.4 Triton?


NW OHIO
AMSOIL 0w-20 with an AMSOIL Ea oil filter. 25,000 miles/1 year guaranteed!
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