'05 Explorer 5w30

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I've read here the new Fords call for 5w20 oil.
My manual says 5w30.
The oil cap says 5w30.


Where does this info on the use of 5w20 come in?
dunno.gif

I plan on using 5w30 Mobil 1 in the cold months and 10w 30 in the hot months.
 
Trying to track down this myself. A poster on another board said his dealer claims the 4.0L SOHC is now spec'd for 5W-20 oil, not the 5w30 that shows up in the owners manual and everywhere else.

I have emailed Ford tech to get their response.

Either this dealer made a mistake, is choosing to use 5w-20 oil on all vehicles to save inventory/money, or he correct and 5W-20 oi9l is now spec'd for the 4.0.

We will see
 
quote:

Originally posted by tenderloin:
Trying to track down this myself. A poster on another board said his dealer claims the 4.0L SOHC is now spec'd for 5W-20 oil, not the 5w30 that shows up in the owners manual and everywhere else.

I have emailed Ford tech to get their response.

Either this dealer made a mistake, is choosing to use 5w-20 oil on all vehicles to save inventory/money, or he correct and 5W-20 oi9l is now spec'd for the 4.0.

We will see


Interesting tenderloin.
I read that probably on the same board.
Ford board by chance?
I'm a believer in the use of 5w20 is just to help with the CAFE numbers.
I had plenty of those buy 3 get 3 free Pep Boys coupons(thanks to you
wink.gif
) and have a big stash of Mobil 1 in both 5w30 and 10w30 weights.
So I'm staying away from 5w20 because of my stash and more so because of 5w20's lighter weight.
 
This seems as good a time as any to ask: Aside from possibly voiding the maunfacturer's warranty...what is the downside (if any) of long term usage of a heavier viscosity..for example, using 5w30 in an engine spec'd for 5w20, or 10w30 in an engine spec'd for 5w30? In these examples, I wouldn't expect significant problems...am I wrong? I know enough not to put 20w50 in a 5w20 application.
 
Ford does not spec the 20weight for this engine. I ran 10w30 in ours year round until we sold it last month. M1 5w30 would be fine if you did'nt want to run the 10w30.
BTW we had an 02' model.
 
quote:

Originally posted by GrtArtiste:
This seems as good a time as any to ask: Aside from possibly voiding the maunfacturer's warranty...what is the downside (if any) of long term usage of a heavier viscosity..for example, using 5w30 in an engine spec'd for 5w20, or 10w30 in an engine spec'd for 5w30? In these examples, I wouldn't expect significant problems...am I wrong? I know enough not to put 20w50 in a 5w20 application.

Can't really answer your querstion but I change my Mobil 1 twice a year on all my vehicles.
April and Nov.
The Apr change I use 10w30 and the Nov colder weather change I use 5w30.
I've read here that the Mobil 1 10w30 is 7% thicker than 5w30.
Not a big deal.
Seems 5w20 is for better manufacturer MPG average.
Honda wants 5w20 in their vehicles in the US.
Abroad 5w30 is called for.
confused.gif
 
The 4.0 SOHC in the past has been one of the engines that Ford has NOT spec'd for 5w20. Since your manual and oil cap both say 5w30, that's what I would use.
 
Colt- With Ford spec'ing 5W-20 in anything it can get away with putting it in, Ford specifically recommending 5w30 in their 4.0L SOHC V-6 cannot be a coincidence - regardless of what some stealership says, I'd be extremly leary of going to a thinner viscosity in this application since we know Ford would be recommending a 20 weight if they thought they could safely get away with it.

Doesn't really help you with your 20 weight question, but I've got a pretty good trend going on my '03 Ranger FX4 Level II...it has the same 4.0L SOHC V-6 that you have...obviously a couple years older though...

My latest UOA as of 7/25/05: Mobil-1 5w30 Extended Performance, 2003 Ford 4.0L SOHC V-6, 4999 miles on oil

Chuck
 
5/20 is CAFE driven only, engine wear I think will increase IN MY opinion I'd stick with the 30wts, unless in Siberia 20W is toooo thin for anything.
bruce
 
If you look on the drivers side valve cover you should see a little white sticker that says your engine was built in Cologne (Köln), Germany. This is the only gas engine that Ford still recommends 5w30 in and it was obviously designed to use a oil of such viscosity and not the thinner, lower HT/HS oil that appears to be acceptable in nearly all other U.S. designed engines.

Personally I'd stick with a 5W/10W-30 in this particular engine.
 
How about Honda? I own a '04 Acura TL and use Amsoil 0w30 as I feel it's a great oil and covers everything in all temps.

Can they really void my warranty using this because it's not the
wt spec?

I am a believer in full synthetics so am not interested in the Amsoil group III 5W-20.

I am considering using Red Line 5W-20, what thinks you experts.

Craig
 
quote:

Originally posted by Colt:
I've read here the new Fords call for 5w20 oil.
My manual says 5w30.
The oil cap says 5w30.


Where does this info on the use of 5w20 come in?
dunno.gif

I plan on using 5w30 Mobil 1 in the cold months and 10w 30 in the hot months.


Use 5w30 all year around, the 30 after the "W" is what you worry about.
 
From a Ford board

Thank you for contacting the Ford Motor Company Customer Relationship Center regarding the recommended engine oil for your 2005 Ford Explorer.

As per our resources the Ford recommended engine oil for your 2005 Ford Explorer with 4.0L, is 5w30. As instructed in the owner's manual of 2005 Explorer, page 219, to protect your engine’s warranty use Motorcraft SAE 5w30 or an equivalent 5w30 oil meeting Ford specification WSS-M2C929-A.

We consider the satisfaction of our customers one of our most important objectives. If you have any other inquiries or concerns, please feel free to contact us and we will be happy to address them for you.


Sincerely,
Susan
Customer Relationship Center
Ford Motor Company
 
When you bring in for service specify you only want 5w30 not 5w20.

My friend took his explorer with the 4.0 in for service and found out after they put in 5w20.The 5w20 broke down alot faster in his 4.0 in this jungle heat.
 
You'd think dealers, of all people, would know better.
I got great UOA's from my wife's Taurus on both 0w-20 M1 and 5w-20 Motorcraft, so I don't have any problem running it in a vehicle designed for it.
 
Every Ford dealer I've been to puts 5W-20 in everything (new or used) but diesels now unless the customer specifies a particular viscosity.
 
quote:

Originally posted by Craig:
How about Honda? I own a '04 Acura TL and use Amsoil 0w30 as I feel it's a great oil and covers everything in all temps.

Can they really void my warranty using this because it's not the
wt spec?

I am a believer in full synthetics so am not interested in the Amsoil group III 5W-20.

I am considering using Red Line 5W-20, what thinks you experts.

Craig


You spin a rod bearing and Honda will claim it was because you used the wrong viscosity oil. Will they prevail? Who knows. Always best to use the spec'd oil while under warranty.
 
The 5w20 semi/syn Motorcraft seems fine in my 99 Grand Marquis and 05 Crown Vic even in jungle heat and idling at times with the a/c on.

But didn't do well in the explorer for sure.

Yeah down here also ford uses 5w20 in Eveything unless specified.
 
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