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#1295412 - 11/27/08 07:49 PM Ford 4.6 how many use 5w30 instead of 5w20
crazyoildude Offline


Registered: 07/23/08
Posts: 5482
Loc: new jersey
Just Curious how many have a late model 2003- 2008 Ford or Mercury with the 4.6 v8 and use 5w30 instead of the recommended 5w20 and is there anyone using another weight of engine oil?? Also what brand oil and filter does everyone prefer for the 4.6

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#1295423 - 11/27/08 08:07 PM Re: Ford 4.6 how many use 5w30 instead of 5w20 [Re: crazyoildude]
Bryanccfshr Offline


Registered: 10/09/04
Posts: 5414
Loc: Durango, Co
Motorcraft filters and 5w20 oil is al you really need. Why do you think you need to use a 5w30?
_________________________
Integrity is what we do when no one's looking.

2010 FJ Cruiser
Mobil 1 0w20 10k mile or 1 year WECF OCI's
2012 BMW F30 with the new N20
Tbd

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#1295424 - 11/27/08 08:10 PM Re: Ford 4.6 how many use 5w30 instead of 5w20 [Re: crazyoildude]
Barkleymut Offline


Registered: 01/27/04
Posts: 2444
Loc: Richmond, VA
I've only used the MC 5-20 on my stang. I've only used the 820 filter until this change and am considering dumping the AAP filter for the 820 because of some stuff I've read.
_________________________
09 Vue(95K) 2.4 4spd AT -PU 5w30 / 09 Flex(52K)3.5L PU / Moms car 04 Pilot(105K) 5w20 PP + Puro

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#1295443 - 11/27/08 08:32 PM Re: Ford 4.6 how many use 5w30 instead of 5w20 [Re: Bryanccfshr]
crazyoildude Offline


Registered: 07/23/08
Posts: 5482
Loc: new jersey
i never said i used 5w30 i was just curious what people used

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#1295444 - 11/27/08 08:34 PM Re: Ford 4.6 how many use 5w30 instead of 5w20 [Re: Barkleymut]
crazyoildude Offline


Registered: 07/23/08
Posts: 5482
Loc: new jersey
what did u read ? i have used motorcraft 820s for a long time with no problems

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#1295458 - 11/27/08 08:47 PM Re: Ford 4.6 how many use 5w30 instead of 5w20 [Re: crazyoildude]
silverfrost1 Offline


Registered: 11/27/08
Posts: 3
Loc: ca
I use 5W30 in my 2000 Crown Victoria because my manual and the sticker on the fan shroud says so. I believe in 2001 or 2002 model years for the CV they changed to 5W20.

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#1295464 - 11/27/08 08:54 PM Re: Ford 4.6 how many use 5w30 instead of 5w20 [Re: silverfrost1]
Titan Offline


Registered: 10/04/05
Posts: 2329
Loc: Morgan, UT
820 with the Silicon valve is the best value. Once, I put a different brand of filter on it...ticking at start-up caused me to change back within about a week.

I mixed a couple of quarts of 5w-30 PP with four quarts of 5w-20 PP a few times. I just had some 5w-30 that I needed to use up. UOA's were always great.

These engines will run for longer than the body will last if you use a decent 5w-20 with appropriate OCI's. I ran PP over 10,000 miles several times...but, they were 95% highway miles. YMMV.
_________________________
The terms "dino,synthetic,blend,conventional" are marketing derived; not scientific.

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#1295511 - 11/27/08 10:30 PM Re: Ford 4.6 how many use 5w30 instead of 5w20 [Re: crazyoildude]
SevenBizzos Offline


Registered: 12/10/06
Posts: 448
Loc: The IL
I run Amsoil XL 5W-20 with an Amsoil filter. It's an annual (5-6k) change.

A lot of guys in my Mustang club run 5w-30. A lot of them are also hooked on Mobil1. MC is probably #2.

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#1295515 - 11/27/08 10:34 PM Re: Ford 4.6 how many use 5w30 instead of 5w20 [Re: SevenBizzos]
c3po Offline


Registered: 01/24/08
Posts: 3358
Loc: Maryland
I am running Amsoil 0W-20 right now, when I run out of the stuff I may go back to Amsoil XL 5W-20 or the Pennzoil Platinum 5W-20 since it is a good price at Wal-Mart.

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#1295521 - 11/27/08 10:44 PM Re: Ford 4.6 how many use 5w30 instead of 5w20 [Re: c3po]
Ben99GT Offline


Registered: 02/25/05
Posts: 4303
Loc: MS
I used M1 5W-30 in my '99 4.6 2V and in my '01 F150, I use PP 5W-20 in my 4.6 4V now. Motorcraft FL-820S on the '99-'01 2Vs, Motorcraft FL-1A on the 4V.

Mobil 1 oil filters are a waste, and I've seen a few engines that have eaten the anti-drain back valves out of those filters. Never once heard of a problem with a Motorcraft filter other than a lack of attention (double ringed filter).
_________________________
2001 F150 Supercrew
1991 Mustang LX notch
1999 Mustang GT


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#1295546 - 11/27/08 11:31 PM Re: Ford 4.6 how many use 5w30 instead of 5w20 [Re: Ben99GT]
rg200amp Offline


Registered: 02/10/08
Posts: 3127
Loc: Phila,PA
I ran 5w20 in my 6.8L V10(same modular motor design)
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// 2013 Subaru WRX //
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#1295556 - 11/27/08 11:48 PM Re: Ford 4.6 how many use 5w30 instead of 5w20 [Re: Ben99GT]
MillerMan Offline


Registered: 09/17/03
Posts: 285
Loc: Minn/Wis
0w20/0w30

I have mainly M1 0w-20 in now, note my startups are fairly quiet now that winter is here

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#1295577 - 11/28/08 12:02 AM Re: Ford 4.6 how many use 5w30 instead of 5w20 [Re: Ben99GT]
bdcardinal Offline


Registered: 06/03/05
Posts: 6621
Loc: Santa Barbara, CA
 Originally Posted By: Ben99GT
I used M1 5W-30 in my '99 4.6 2V and in my '01 F150, I use PP 5W-20 in my 4.6 4V now. Motorcraft FL-820S on the '99-'01 2Vs, Motorcraft FL-1A on the 4V.

Mobil 1 oil filters are a waste, and I've seen a few engines that have eaten the anti-drain back valves out of those filters. Never once heard of a problem with a Motorcraft filter other than a lack of attention (double ringed filter).


remote filter on the 99?
_________________________
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1995 Ford Mustang GT

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#1295704 - 11/28/08 07:52 AM Re: Ford 4.6 how many use 5w30 instead of 5w20 [Re: bdcardinal]
TallPaul Offline


Registered: 10/22/03
Posts: 12921
Loc: By Detroit
I'd like to know how many use 10w30 in their 4.6s.
_________________________
"There is a slight vibration in it that I always attributed to something I can't explain." --Neil Young

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#1295722 - 11/28/08 08:11 AM Re: Ford 4.6 how many use 5w30 instead of 5w20 [Re: bdcardinal]
Jim Allen Offline


Registered: 08/12/05
Posts: 4477
Loc: NW Ohio
I think the only good reason to go up to a heavier oil in the modular 3V/4V engines would be operation in hot climates or a lot of hard work. Lots of tow/haul work, for example, where the oil temp goes high and stays for long periods under heavy loads. I can't speak to a 4.6L in a car, but I monitor engine oil temp on my '05 F150 5.4L 3V and it seldom reaches 210/212 (the temps for the hot viscosity rating in case you didn't know), even on a long freeway drive in hot (for here) weather. I haven't done any long tows, at least over about 20 miles, but have done some short, very heavy tows (loaded grain trailers) and oil temp does not rise much above 209 over about 15 miles on 80+ degree days. Now that cold temps are here it runs about 185 on a long haul. At around 90F, it runs 200-206F.

In the end, if you look at the good to high quality 5W20s, you will see they are between 8 and 9cSt at 100C (212F), which is at the high end of the grade. If you look at UOAs, you will also see that they are generally very shear stable, so they stay in grade. Many 5W30s are at the low end of the 30 grade to start and a lot tend to shear down a little (or a lot) at the end of an OCI, some into 20 grade or nearly so (of course SAE 30 is a pretty narrow band, isn't it?).

Bottom line, I don't see a lot of gain going to a 5W30 but not a lot to lose either. If you live in a hot climate, you'd have a little cushion to account for heat, especially if you used one of the better 5W30s that don't shear much.

You hear of a few folks running 10W40 or 15W40 without any disclosed problems but, personally, I don't see any need to go above the SAE 30 grade in a modular without some verified reason... like french fry tank oil temps. I haven't been able to learn what the viscosity threshold is, but the cam timing advance mechanisms and tensioners are reputed to be sensitive to oil viscosity. I don't know exactly what happens in that case. In a hot climate, probably very little, but imagine a 20F 15W40 cold start in an engine designed for 5W20!!!
_________________________
Jim Allen
Keepin' the Good Old Days of Four Wheeling Alive

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