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2004 Grand Marquis #5158484
07/12/19 09:18 AM
07/12/19 09:18 AM
Joined: Sep 2005
Posts: 181
Royal Oak MI.
mrjlube Offline OP
mrjlube  Offline OP

Joined: Sep 2005
Posts: 181
Royal Oak MI.
Hi everyone, just picked up a 2004 Grand Marquis from a son who's dad passed. Car is in great shape and has 23,000 original miles. I'm wanting to change the oil just cause its new to me. What oil would you recommend for this 4.6 liter. Trying to decide if I should go to synthetic,if so which one? Thank you all in advance for any input.


2017 Ford Escape ...ValvolineSynthetic 5w20

2009 kymco xciting 500...amsoil scooter oil...10w40

2001 Honda civic 5 speed 1.7.....Valvoline Maxlife 5w30
Re: 2004 Grand Marquis [Re: mrjlube] #5158499
07/12/19 09:28 AM
07/12/19 09:28 AM
Joined: Dec 2002
Posts: 1,738
North Carolina
Rat407 Offline
Rat407  Offline

Joined: Dec 2002
Posts: 1,738
North Carolina
Nice purchase, sad of how it became available.

I would run any off the shelf 5w-20, or any of the AMSOIL line 5w-20 if expense isn't an issue.


2002 Silverado 5.3 0w-20 AMSOIL
Re: 2004 Grand Marquis [Re: mrjlube] #5158519
07/12/19 09:57 AM
07/12/19 09:57 AM
Joined: Mar 2013
Posts: 5,706
The Midwest
skyactiv Offline
skyactiv  Offline

Joined: Mar 2013
Posts: 5,706
The Midwest
Those engines are very reliable and went for hundreds of thousands of miles on cheap bulk government and taxi fleet won the bid no name swill. I'd use the same oil your using in your Escape unless you wanna save money and use something cheaper.
In the case of saving money despite the goofy name, I'd use Valvoline Daily Protection 5W20.


Wife: 15' Audi A4 quattro 6 speed manual
Me: 13' VW GTI 3 door 6 speed manual

Re: 2004 Grand Marquis [Re: mrjlube] #5158522
07/12/19 09:59 AM
07/12/19 09:59 AM
Joined: Mar 2011
Posts: 615
High Country of Western NC
sopususer Offline
sopususer  Offline

Joined: Mar 2011
Posts: 615
High Country of Western NC
Great car and great engine. Should last for MANY years with any quality oil choice.




Re: 2004 Grand Marquis [Re: sopususer] #5158533
07/12/19 10:10 AM
07/12/19 10:10 AM
Joined: Sep 2005
Posts: 181
Royal Oak MI.
mrjlube Offline OP
mrjlube  Offline OP

Joined: Sep 2005
Posts: 181
Royal Oak MI.
Thanks for the replies! I use Motorcraft 5w20 in my Escape maybe I will stick with that. Since these engines seem to last,im thinking a full synthetic is not necessary. Is my thinking correct?


2017 Ford Escape ...ValvolineSynthetic 5w20

2009 kymco xciting 500...amsoil scooter oil...10w40

2001 Honda civic 5 speed 1.7.....Valvoline Maxlife 5w30
Re: 2004 Grand Marquis [Re: mrjlube] #5158547
07/12/19 10:30 AM
07/12/19 10:30 AM
Joined: Jun 2016
Posts: 339
Minnesota
JoelB Offline
JoelB  Offline

Joined: Jun 2016
Posts: 339
Minnesota
I'd run supertech 5w30 synthetic. Cheaper than motorcraft semi-synthetic. But as others have said it probable doesn't matter since those motors are awesome.


Mine: 2019 Chevy spark 1.4 Non-turbo
Mobil 1 0w20 AFE
ACDelco UPF64R

Wife's: 2018 Chevy spark 1.4 Non-turbo
Mobil 1 0w20 AFE
ACDelco UPF64R
Re: 2004 Grand Marquis [Re: mrjlube] #5158556
07/12/19 10:47 AM
07/12/19 10:47 AM
Joined: Sep 2015
Posts: 4,233
Connecticut
69GTX Offline
69GTX  Offline

Joined: Sep 2015
Posts: 4,233
Connecticut
I would love to run into another 10-15 yr old Ford CV or Mercury GM again with ultra low miles. Basic, yet great cars that get the job done.

I've had 4 Ford/Lincoln/Mercs with the 4.6L (1997-2002). I used both synthetics and conventionals. On one of them I noted a fairly high consumption on synthetic Formula Shell 5w-20 so I went away from that grade. Never saw that again with conventional 20/30 grade oils or 30 grade synthetics. As everyone has noted, most anything from 5w-20 to 15w-40 would work in these engines. Taxi fleets have used the higher grade quite successfully. I run 5w-30 in mine all year round with a Fram XG2 being changed every other OCI. Never once used Motorcraft oils, and I've owned a dozen Fords since the mid-1980's.

I'd go with 5w-30 in the summer and 5w-20 in winter if you're doing 2 OCI's per year. Note that these engines were designed to run on 5w-30. It was only due to CAFE mileage standards in 2001 that Ford back specced them all to 5w-20. I've researched plenty of information and articles from Ford engineers and car owners. I can't see any reason not to run 5w-30 in warmer weather. The rest of the world ran on 30 and 40 grades year round where CAFE was not a player. I would think a semi-synthetic and/or good conventional like PYB, QSAD, etc. would be just fine. If there are no signs of any engine seal leaks, I'd try to stick whatever was being used before.

The vehicle is probably on the orig trans fluid and filter as well. I'd change them out just to establish a base line. The Ford automatic transmissions are not known for great longevity unless you change the fluid about every 25K miles....less for lots of stop and go driving. Your coolant type should be "Ford yellow" or basically a G05 today.

Last edited by 69GTX; 07/12/19 10:52 AM.

----------------

2001 Lincoln Cont 4.6L DOHC/ 50K mi / QS HM 5w30 / FUG XG2
1999 Camaro SS M6 /19K /Mobil 1 0w40 /Fram UG /GM MTL-ATF
1969 Ply GTX/RRs
Re: 2004 Grand Marquis [Re: mrjlube] #5158595
07/12/19 11:51 AM
07/12/19 11:51 AM
Joined: Jun 2006
Posts: 470
midland tx
askani79705 Offline
askani79705  Offline

Joined: Jun 2006
Posts: 470
midland tx
5w30 QSGB, smooth and quiet


2017 Ford F150 NAPA syn 5w30 Fram 11955.
2000 Chevy 2500 Silverado NAPA conv 5w30 AC Delco Filter
2012 Impala Pennzoil Ultra 10w30 AC Delco Filter
Re: 2004 Grand Marquis [Re: mrjlube] #5158603
07/12/19 11:57 AM
07/12/19 11:57 AM
Joined: May 2014
Posts: 4,097
Columbus,Nebraska
Yah-Tah-Hey Offline
Yah-Tah-Hey  Offline

Joined: May 2014
Posts: 4,097
Columbus,Nebraska
There are many Ford and Mercury full size vehicles in our area. All the older farm folks liked the old rear wheel drive full size vehicles. They hold off getting a front wheel drive vehicle until they don't have a choice. Times change. I liked the rear wheel drive vehicles also but never purchased one since there were so many better choices. Nice find. Do the regular maintenance and you will have reliable transportation for many years.

Re: 2004 Grand Marquis [Re: 69GTX] #5158632
07/12/19 12:24 PM
07/12/19 12:24 PM
Joined: Aug 2017
Posts: 689
Cincinnati, USA
Dave9 Offline
Dave9  Offline

Joined: Aug 2017
Posts: 689
Cincinnati, USA
Originally Posted by 69GTX
The Ford automatic transmissions are not known for great longevity unless you change the fluid about every 25K miles....less for lots of stop and go driving. Your coolant type should be "Ford yellow" or basically a G05 today.


You're going wrong somewhere, maybe thinking of small vehicle Ford Trannys? It should have the 4R70W, an old (circa '93) yet matured design, which typically goes 200K mi without any fluid change, and was also used on F150's capable of >5K+ lbs towing (granted the rear diff ratio matters here too).

It's over spec'd for a Grand Marquis. A more common recommended service interval is every 150K mi or 30K under severe/heavy-towing conditions. 25K for regular driving a Margquis? No way, you might be thinking of Honda.

Last edited by Dave9; 07/12/19 12:25 PM.
Re: 2004 Grand Marquis [Re: mrjlube] #5158633
07/12/19 12:25 PM
07/12/19 12:25 PM
Joined: May 2009
Posts: 2,498
WA (USA)
Y_K Offline
Y_K  Offline

Joined: May 2009
Posts: 2,498
WA (USA)
The smoothest running oil in that engine is M1 0W-30 in my experience, but you can use what you already have in your Escape with confidence.

Re: 2004 Grand Marquis [Re: Dave9] #5158673
07/12/19 01:20 PM
07/12/19 01:20 PM
Joined: Sep 2015
Posts: 4,233
Connecticut
69GTX Offline
69GTX  Offline

Joined: Sep 2015
Posts: 4,233
Connecticut
Originally Posted by Dave9
Originally Posted by 69GTX
The Ford automatic transmissions are not known for great longevity unless you change the fluid about every 25K miles....less for lots of stop and go driving. Your coolant type should be "Ford yellow" or basically a G05 today.


You're going wrong somewhere, maybe thinking of small vehicle Ford Trannys? It should have the 4R70W, an old (circa '93) yet matured design, which typically goes 200K mi without any fluid change, and was also used on F150's capable of >5K+ lbs towing (granted the rear diff ratio matters here too).

It's over spec'd for a Grand Marquis. A more common recommended service interval is every 150K mi or 30K under severe/heavy-towing conditions. 25K for regular driving a Margquis? No way, you might be thinking of Honda.


I'm certainly not wrong. I've owned a dozen big Ford and Merc sedans since 1984. A couple of them I got used at the 50K-75K mile point. And I wasn't yet up to speed on changing trans fluid as often as I should have. I believe owners manual on these has ALWAYS been 25K-30K. After losing 2 transmissions on my earlier Crown Vics at 75K and 125K respectively, I went to a strict 25K-30K regimen. Never lost a big sedan trans early on again. 150K mile fluid changes on a big Ford sedan? That's nuts...unless you want to replace the trans by 75K-125K miles. I prefer to go 200-250K miles. The fluid is pretty beat up by 25K and heavily sheared down if you're using non-synthetic Merc/Mercon V. 25K miles on most regular Merc/Mercon V's and I'd bet the viscosity has sheared down from 7.4 cSt @100C down to 5.2 or lower. Being below the normal range of Mercon V specs should be reason enough for changing it by 25K miles.

Fwiw Ford's recommended trans fluid change for the 2004 GM is 30,000 miles. A typical life for one of these is probably 125K-175K miles.... assuming you change the fluid as recommended and don't pay much attention to your driving habits. Efficiently and modestly shift the trans and change the fluid and you might get 225K-300K miles on that trans. I've only got past 230K miles once....and that car was a highway cruiser doing 25K miles per year on annual changes.

Never owned a Honda or any foreign vehicle. I've owned ONLY big Ford/Merc/Lincoln sedans for the past 35 yrs as my daily drivers. I think I know a thing or two about their longevities. The FWD Lincoln/Taurus AX4N is a particularly light duty trans for a fairly powerful car. Those should have fluid serviced earlier than the factory recommended mileage if you really want them to last...especially if your vehicle is not a highway commuter.

Last edited by 69GTX; 07/12/19 01:29 PM.

----------------

2001 Lincoln Cont 4.6L DOHC/ 50K mi / QS HM 5w30 / FUG XG2
1999 Camaro SS M6 /19K /Mobil 1 0w40 /Fram UG /GM MTL-ATF
1969 Ply GTX/RRs
Re: 2004 Grand Marquis [Re: mrjlube] #5158750
07/12/19 02:51 PM
07/12/19 02:51 PM
Joined: Oct 2004
Posts: 9,163
Cincinnati, OH, USA
bullwinkle Offline
bullwinkle  Offline

Joined: Oct 2004
Posts: 9,163
Cincinnati, OH, USA
Use Mercon V in the transmission, Castrol Magnatec 5W20 in the engine, watch the rear axle like a HAWK for gear oil leaks at the wheels (some axle shafts had issues). Otherwise, drive on! I love mine.


06 Ram 3500 CTD 4X4(FG Venturi), 93 GMC C3500 6.2, 89 F-450 7.3, 98 XJ 4.0(XG8A), 05 xB(XG3600), 18 Transit 3.7, 03 Merc Grand Marquis 4.6 2V(XG2)
Re: 2004 Grand Marquis [Re: Yah-Tah-Hey] #5158784
07/12/19 03:19 PM
07/12/19 03:19 PM
Joined: Dec 2017
Posts: 2,350
CO
JLTD Offline
JLTD  Offline

Joined: Dec 2017
Posts: 2,350
CO
OP, great find! Enjoy it for 20 years...as mentioned, with regular fluid changes you are good to go. Agree on a trans pan drop/filter change / refill every 30k, never have to worry and that's what I did for mine before it was totaled at around 160k.

Motor oil - I'm a fan of the originally specified 5w-30. 5000 conventional or 7500 synthetic are reasonable intervals, but may depend on your driving habits....could go much further (DNewton3 has 2 Crown Vics and goes 15k on dino)...ymmv


Originally Posted by Yah-Tah-Hey
There are many Ford and Mercury full size vehicles in our area. All the older farm folks liked the old rear wheel drive full size vehicles. They hold off getting a front wheel drive vehicle until they don't have a choice...


They should check out a Toyota 4Runner...old school body-on-frame, RWD...unless they have an aversion to foreign vehicles, that is.


I use the overseas manual to choose my oil viscosity.

Using AMSOIL

Hers: 2008 Jeep Liberty 149k, SS5w30/Amsoil

His: 2015 4Runner 55k, SS 5w20/Amsoil

Re: 2004 Grand Marquis [Re: mrjlube] #5158792
07/12/19 03:31 PM
07/12/19 03:31 PM
Joined: Nov 2003
Posts: 3,843
Cape Cod, MA
RF Overlord Offline
RF Overlord  Offline

Joined: Nov 2003
Posts: 3,843
Cape Cod, MA
mrjlube, check my sig for oil recommendation.


Supercharged '03 Mercury Marauder - Trilogy Motorsports #61
PP 5W-30 / MC FL820S

'04 Grand Marquis LS Limited Edition - MC 5W-20 / FL820S

'00 Grand Marquis GS - being resurrected. Slowly.
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