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08 Ford Escape... 10w30hm dino to 5w20 synthetic #4490015
08/16/17 08:53 AM
08/16/17 08:53 AM
Joined: Apr 2017
Posts: 1,422
San Rafael, CA
dogememe Offline OP
dogememe  Offline OP
Joined: Apr 2017
Posts: 1,422
San Rafael, CA
My just acquired Ford escape has about 211k miles on the 3.0L V6. It's been serviced for years at the local Castrol quick-lube and according to the sticker they put in 10w-30 high mileage. If I go to 5w-20 (which the car calls for) non-high-mileage, is it going to start leaking out everywhere, or will it be OK? I intend to use Royal Purple because I can get it for the same price or cheaper as Castrol and Mobil1.


2010 Ford Escape 2.5~91K Miles: AMSOIL SS 5W-30, AMSOIL SS FE ATF.
1995 Chevy Silverado 5.7 ~277K Miles: Delo 10W-30, AMSOIL OE MV ATF.
AMSOIL
Re: 08 Ford Escape... 10w30hm dino to 5w20 synthetic [Re: dogememe] #4490017
08/16/17 08:56 AM
08/16/17 08:56 AM
Joined: Oct 2015
Posts: 446
MN
TmanP Offline
TmanP  Offline
Joined: Oct 2015
Posts: 446
MN
You should be fine, nothing to worry about. However, some people say that they have leakage when stopping use of a HM oil. It may happen, it may not (all SN oils have seal conditioners, HM just have more).


2012 Toyota Camry 2.5 30,000 mi
2015 Chevy Silverado LT Z71 5.3 V8 30,000 mi
2010 Toyota Sienna 3.5 V6 150,000 mi
Re: 08 Ford Escape... 10w30hm dino to 5w20 synthetic [Re: dogememe] #4490021
08/16/17 09:01 AM
08/16/17 09:01 AM
Joined: Jul 2016
Posts: 682
il usa
merconvvv Offline
merconvvv  Offline
Joined: Jul 2016
Posts: 682
il usa
Could throw a quart of 10w30hm in there


1988 Mazda RX7 na PP 10w30 Noack 4.7
1994 Chrysler Concorde 3.3
1999 Ford Expedition 4.6 QSUD 10W30 NOACK 5.0
Re: 08 Ford Escape... 10w30hm dino to 5w20 synthetic [Re: dogememe] #4490026
08/16/17 09:03 AM
08/16/17 09:03 AM
Joined: Jun 2016
Posts: 3,566
MN
oil_film_movies Offline
oil_film_movies  Offline
Joined: Jun 2016
Posts: 3,566
MN
That HM oil has seal conditioners, but seal swelling should be engineered to be the same as non-HM oils according to seal swell test requirements in SM/SN oils these days. It should be fine, but I'd still want to use an HM (pick 5w30 HM) oil in that 10 year old vehicle.

Last edited by oil_film_movies; 08/16/17 09:04 AM.
Re: 08 Ford Escape... 10w30hm dino to 5w20 synthetic [Re: dogememe] #4490041
08/16/17 09:18 AM
08/16/17 09:18 AM
Joined: Jul 2014
Posts: 128
North TEXAS
oldoak2000 Offline
oldoak2000  Offline
Joined: Jul 2014
Posts: 128
North TEXAS
Originally Posted By: dogememe
My just acquired Ford escape has about 211k miles on the 3.0L V6. It's been serviced for years at the local Castrol quick-lube and according to the sticker they put in 10w-30 high mileage. If I go to 5w-20 (which the car calls for) non-high-mileage, is it going to start leaking out everywhere, or will it be OK? I intend to use Royal Purple because I can get it for the same price or cheaper as Castrol and Mobil1.


try it with just the RP (and no additives); IT will let you know...
i've got an '05 chevy with 280K miles and it STILL doesn't burn or leak a drop of oil using only ST FULL SYN 5w30 @7K intervals for last 180k miles . . .
no additives
no hm

Re: 08 Ford Escape... 10w30hm dino to 5w20 synthetic [Re: oldoak2000] #4490070
08/16/17 09:58 AM
08/16/17 09:58 AM
Joined: Apr 2017
Posts: 1,422
San Rafael, CA
dogememe Offline OP
dogememe  Offline OP
Joined: Apr 2017
Posts: 1,422
San Rafael, CA
Originally Posted By: oldoak2000
Originally Posted By: dogememe
My just acquired Ford escape has about 211k miles on the 3.0L V6. It's been serviced for years at the local Castrol quick-lube and according to the sticker they put in 10w-30 high mileage. If I go to 5w-20 (which the car calls for) non-high-mileage, is it going to start leaking out everywhere, or will it be OK? I intend to use Royal Purple because I can get it for the same price or cheaper as Castrol and Mobil1.


try it with just the RP (and no additives); IT will let you know...
i've got an '05 chevy with 280K miles and it STILL doesn't burn or leak a drop of oil using only ST FULL SYN 5w30 @7K intervals for last 180k miles . . .
no additives
no hm


Oh yeah, I would NEVER put in any oil additives. Alright, I'll give it a shot and see what happens. Worst case I switch to Valvoline Maxlife Synblend or O'Reilly brand Full Syn HM. Thanks smile

Originally Posted By: oil_film_movies
That HM oil has seal conditioners, but seal swelling should be engineered to be the same as non-HM oils according to seal swell test requirements in SM/SN oils these days. It should be fine, but I'd still want to use an HM (pick 5w30 HM) oil in that 10 year old vehicle.


Thank you! I was under the impression high mileage oil actually swelled seals, not just conditioning... good information! Makes me a little less worried. Any particular benefit to 5w-30 in an engine that calls for 5w-20. I mean, when I had my Crown Vic I ran 5w-30 instead of 5w-20 because I know thesame engine originally called for 5w-30 and were back-specced to 5w-20 for fuel economy reasons and I beat the snot out of that car... but I'm pretty sure the 3.0L V6 is a newer design with thinner oil in mind. Maybe I'm wrong? Wouldn't be the first time laugh And btw this is my "gas saver" car so I need best MPG possible smile

Last edited by dogememe; 08/16/17 10:10 AM.

2010 Ford Escape 2.5~91K Miles: AMSOIL SS 5W-30, AMSOIL SS FE ATF.
1995 Chevy Silverado 5.7 ~277K Miles: Delo 10W-30, AMSOIL OE MV ATF.
AMSOIL
Re: 08 Ford Escape... 10w30hm dino to 5w20 synthetic [Re: dogememe] #4490089
08/16/17 10:32 AM
08/16/17 10:32 AM
Joined: Jun 2016
Posts: 3,566
MN
oil_film_movies Offline
oil_film_movies  Offline
Joined: Jun 2016
Posts: 3,566
MN
Originally Posted By: dogememe
Any particular benefit to 5w-30 in an engine that calls for 5w-20. I mean, when I had my Crown Vic I ran 5w-30 instead of 5w-20 because I know thesame engine originally called for 5w-30 and were back-specced to 5w-20 for fuel economy reasons... but I'm pretty sure the 3.0L V6 is a newer design with thinner oil in mind. Maybe I'm wrong? Wouldn't be the first time laugh And btw this is my "gas saver" car so I need best MPG possible smile


I tend to say go up slightly in viscosity with a 200+ thousand mile engine like that for better ring and valve stem sealing on a worn engine. You'll do fine on 5w20 or 0w20 if you don't notice any consumption issues, and you will gain around 1.5% MPG due to less viscous oil drag using the xw20 oils.

As for your V6's design, it ( https://en.wikipedia.org/wiki/Ford_Duratec_V6_engine ) was produced a long time ago, 1993, and Ford evolved it gradually all the way to the end in 2012. It used 10w30 back in 1993. Going up slightly in viscosity never hurts wear at all, might even improve it if driven hard, and only hurts MPG some.

As for seal swell vs. conditioning concepts, the SL/SM/SN, and sometimes additional dexos1 shrink/swell testing, means it is within spec, i.e., the seals aren't going out of bounds with any oil that carries those specs. Conditioning keeps them from hardening too much (older seals).

Re: 08 Ford Escape... 10w30hm dino to 5w20 synthetic [Re: dogememe] #4490192
08/16/17 12:32 PM
08/16/17 12:32 PM
Joined: Sep 2002
Posts: 2,382
VA
Gebo Offline
Gebo  Offline
Joined: Sep 2002
Posts: 2,382
VA
I would stay with the 10w-30.

I know I may get some flak but I had an old Honda Prelude that had been on Castrol 5w30 conventional for the first 250K miles not using or dripping a drop of oil. I decided to go with a very popular and readily available synthetic and 25 K miles later my driveway is now covered in oil spots. I knew better. I knew better. I knew it in my guts.

Coincidence? Could be. What I know is I wish I had stayed with a conventional oil. I believe my changing to synthetic after over 200K miles caused these leaks. The leaking started the first 5K after changing over. I don't want to argue. Just my observation.


'98 LEX LS400 280K
'00 LEX GS300 195K
'02 4Runner 225K
'05 Lex LS430 85K
'06 Toyota Highlander 145K
'09 Lex IS350 85K
'07 Lex GX470 60K
Amsoil in all engines, transmissions and differentials

Re: 08 Ford Escape... 10w30hm dino to 5w20 synthetic [Re: dogememe] #4490212
08/16/17 12:53 PM
08/16/17 12:53 PM
Joined: Jun 2011
Posts: 1,803
Crawfordville FL
SilverFusion2010 Online content
SilverFusion2010  Online Content
Joined: Jun 2011
Posts: 1,803
Crawfordville FL
Originally Posted By: dogememe
Originally Posted By: oldoak2000
Originally Posted By: dogememe
My just acquired Ford escape has about 211k miles on the 3.0L V6. It's been serviced for years at the local Castrol quick-lube and according to the sticker they put in 10w-30 high mileage. If I go to 5w-20 (which the car calls for) non-high-mileage, is it going to start leaking out everywhere, or will it be OK? I intend to use Royal Purple because I can get it for the same price or cheaper as Castrol and Mobil1.


try it with just the RP (and no additives); IT will let you know...
i've got an '05 chevy with 280K miles and it STILL doesn't burn or leak a drop of oil using only ST FULL SYN 5w30 @7K intervals for last 180k miles . . .
no additives
no hm


Oh yeah, I would NEVER put in any oil additives. Alright, I'll give it a shot and see what happens. Worst case I switch to Valvoline Maxlife Synblend or O'Reilly brand Full Syn HM. Thanks smile

Originally Posted By: oil_film_movies
That HM oil has seal conditioners, but seal swelling should be engineered to be the same as non-HM oils according to seal swell test requirements in SM/SN oils these days. It should be fine, but I'd still want to use an HM (pick 5w30 HM) oil in that 10 year old vehicle.


Thank you! I was under the impression high mileage oil actually swelled seals, not just conditioning... good information! Makes me a little less worried. Any particular benefit to 5w-30 in an engine that calls for 5w-20. I mean, when I had my Crown Vic I ran 5w-30 instead of 5w-20 because I know thesame engine originally called for 5w-30 and were back-specced to 5w-20 for fuel economy reasons and I beat the snot out of that car... but I'm pretty sure the 3.0L V6 is a newer design with thinner oil in mind. Maybe I'm wrong? Wouldn't be the first time laugh And btw this is my "gas saver" car so I need best MPG possible smile


I have the 3.0L v6 in my fusion and you can run anything from 5w20 to 20w50. I'm currently running M1 HM 10w-30 and its doing quite well with about 5k miles on the oil.

If you haven't replaced the PCV valve with a new OEM valve I recommend you do so. Mine started allowing a lot of oil to pass around 150k. Changed the valve and now I'm back to a quart in 6k.

Monitor the level closely when you switch to 5w20 in case it does develop a leak or consumption increases.

Spend $8 at Walmart for the dual pack of throttle body cleaner and MAF sensor cleaner. Clean out the MAF and allow to dry. Take the throttle body loose from the manifold and clean it. Put it all back together and enjoy the smooth running. I just did the cleaning on mine and it cleaned up a slight miss I was seeing on cold idle. Now it runs smooth as silk.

It's a great motor. Will serve you well. Wind it out occasionally and consider a drain/fill in he transmission of you haven't done one recently


2010 Ford Fusion SE 3.0L V6, 181 miles M1 HM 10w-30
Re: 08 Ford Escape... 10w30hm dino to 5w20 synthetic [Re: dogememe] #4490224
08/16/17 01:12 PM
08/16/17 01:12 PM
Joined: Dec 2003
Posts: 9,922
Florida, Cape Coral
Eddie Offline
Eddie  Offline
Joined: Dec 2003
Posts: 9,922
Florida, Cape Coral
I see no reason to change what has worked so well so long. Why fix, what is working? Ed


CX5 Touring 2.5L :-)
Re: 08 Ford Escape... 10w30hm dino to 5w20 synthetic [Re: Eddie] #4490664
08/16/17 11:22 PM
08/16/17 11:22 PM
Joined: Apr 2017
Posts: 1,422
San Rafael, CA
dogememe Offline OP
dogememe  Offline OP
Joined: Apr 2017
Posts: 1,422
San Rafael, CA
Originally Posted By: Eddie
I see no reason to change what has worked so well so long. Why fix, what is working? Ed


Fuel economy smile


2010 Ford Escape 2.5~91K Miles: AMSOIL SS 5W-30, AMSOIL SS FE ATF.
1995 Chevy Silverado 5.7 ~277K Miles: Delo 10W-30, AMSOIL OE MV ATF.
AMSOIL
Re: 08 Ford Escape... 10w30hm dino to 5w20 synthetic [Re: dogememe] #4494421
08/21/17 11:25 AM
08/21/17 11:25 AM
Joined: Apr 2017
Posts: 1,422
San Rafael, CA
dogememe Offline OP
dogememe  Offline OP
Joined: Apr 2017
Posts: 1,422
San Rafael, CA
Oil has been changed and so far no leaks, no engine noise, no problems. Will monitor consumption but honestly I doubt it's gonna be an issue - after all, my 92 Chevy didn't experience any consumption issues after switching to Royal Purple. They're both on their first oil changes under my ownership but after second oil changes I'll get UOAs done and see how both are doing.


2010 Ford Escape 2.5~91K Miles: AMSOIL SS 5W-30, AMSOIL SS FE ATF.
1995 Chevy Silverado 5.7 ~277K Miles: Delo 10W-30, AMSOIL OE MV ATF.
AMSOIL
Re: 08 Ford Escape... 10w30hm dino to 5w20 synthetic [Re: dogememe] #4494429
08/21/17 11:42 AM
08/21/17 11:42 AM
Joined: Jan 2007
Posts: 17,501
Clovis, CA
Merkava_4 Offline
Merkava_4  Offline
Joined: Jan 2007
Posts: 17,501
Clovis, CA
The engine is already stretched out from being ran with the thick 10W-30 in there. If you try to run it with 5W-20, you're going to have low oil pressure.

Re: 08 Ford Escape... 10w30hm dino to 5w20 synthetic [Re: dogememe] #4494919
08/22/17 01:03 AM
08/22/17 01:03 AM
Joined: Jun 2017
Posts: 391
Western usa
Ammofirst Offline
Ammofirst  Offline
Joined: Jun 2017
Posts: 391
Western usa
At 211k I'd be more likely to try mobil 1 10w-30HM it's at 3.5 hths.

Re: 08 Ford Escape... 10w30hm dino to 5w20 synthetic [Re: Merkava_4] #4497702
08/25/17 10:47 AM
08/25/17 10:47 AM
Joined: Apr 2017
Posts: 1,422
San Rafael, CA
dogememe Offline OP
dogememe  Offline OP
Joined: Apr 2017
Posts: 1,422
San Rafael, CA
Originally Posted By: Merkava_4
The engine is already stretched out from being ran with the thick 10W-30 in there. If you try to run it with 5W-20, you're going to have low oil pressure.


What?


2010 Ford Escape 2.5~91K Miles: AMSOIL SS 5W-30, AMSOIL SS FE ATF.
1995 Chevy Silverado 5.7 ~277K Miles: Delo 10W-30, AMSOIL OE MV ATF.
AMSOIL
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