25w60 say what?
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Fleet Owner
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From: Brentwood,CA
25w60 say what?
ok i am at kragen today and getting some parts and i notice this guy talking about stuff he had no clue about ( oil of course) . he comes to the counter with a case of 25w60 castrol oil
. i figure it is for a old beater . then he asks the part guy to look up the oil filter , he says 2006 ford f-250 5.4 
, i almost died. so then i mentioned the oil ford spec'd is 5w20. he then says 25w60 will stay on the engine longer and help protect on cold starts. so seeing this was a pointless battle and being a wise guy i picked the guy out a atomic orange PH2 filter.
when did they start making 25w60? i shook a bottle on the shelf and it was like gear oil.
. i figure it is for a old beater . then he asks the part guy to look up the oil filter , he says 2006 ford f-250 5.4 , i almost died. so then i mentioned the oil ford spec'd is 5w20. he then says 25w60 will stay on the engine longer and help protect on cold starts. so seeing this was a pointless battle and being a wise guy i picked the guy out a atomic orange PH2 filter. when did they start making 25w60? i shook a bottle on the shelf and it was like gear oil.
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From: North Alabama
Originally Posted by ford390gashog
.....so then i mentioned the oil ford spec'd is 5w20. he then says 25w60 will stay on the engine longer and help protect on cold starts......
With that said, it proabably won't make the 5.4L self-destruct. either. Think about it, 25w60 at operating temperature is still thinner than 5w20 at cold start-up. SO the way I see it is the guy's engine will probably see a lot more wear on cold start-up, but the 60wt. oil at operating temps is a non-issue, IMO.......but what do I know? I'm just some guy who posts bs on an oil forum.
Logistics Pro
Joined: Jul 2002
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From: South Dakota
How do you figure?
The 25w60 at room temp is THICKER that a 5w20 at operation temps. That thick 60wt goop will starve the motor as it would be pooled up in the heads.
Man talk about the lousy mpg too!
Why stop at 25w60? He should have went with a 75w140!
I don't suppose that the counter-top commando talked him into a bottle of Lucas to go with that case of 25w60?
The 25w60 at room temp is THICKER that a 5w20 at operation temps. That thick 60wt goop will starve the motor as it would be pooled up in the heads.
Man talk about the lousy mpg too!
Why stop at 25w60? He should have went with a 75w140!
I don't suppose that the counter-top commando talked him into a bottle of Lucas to go with that case of 25w60?
Last edited by superrangerman2002; Jan 23, 2006 at 07:39 AM.
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Actually it could shorten engine life because it is too thick to flow well in tight areas and the extra shear effort required for thick oil will destroy MPG too and possible increase oil consumption for rings not being able to scrap the thick goo from the cylinder walls. Personally I think 5w20 is a bit light and I would use 10w30 excpet maybe if it was below zero for a while.
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From: North Alabama
Originally Posted by superrangerman2002
How do you figure?
The 25w60 at room temp is THICKER that a 5w20 at operation temps. That thick 60wt goop will starve the motor as it would be pooled up in the heads.....
The 25w60 at room temp is THICKER that a 5w20 at operation temps. That thick 60wt goop will starve the motor as it would be pooled up in the heads.....
I have no real clue as to what would actually happen to this guy's engine running 25w60 over the long haul.
Postmaster
Joined: Mar 2001
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From: So Cal
Too bad he doesn't live in Alaska. You need thick oil so it cushions the engine during cold starts. That thin oil is too brittle ;^)
I hope changes his headlight fluid on a regular basis.
Jim Henderson
I hope changes his headlight fluid on a regular basis.
Jim Henderson
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From: Iowa
One of the critical functions of oil is to cool engine components, like bearings and such. The amount an oil can cool a given engine part is directly proportional to the oil flow across that part. Modular motors were designed for 5w20. Using 25w60 (egad!) the oil flow across the parts will be greatly diminished. It follows, then that the parts will run much hotter. Goodbye motor.
Sounds like another warranty case for Ford.
Sounds like another warranty case for Ford.
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Fleet Owner
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From: Brentwood,CA
i was seacrhing through the castrol line up and found the 25w60 is for V twin air cooled motorcycle engines only and not to be used in any on higway vehicle.
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Originally Posted by seldont
I forgot who made the oil for them but I am pretty sure there are some BMW engines spec'd for the 25w60 oil.
Logistics Pro
Joined: Jul 2002
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From: South Dakota
Putting a MC oil in a auto engine?
Wouldn't that be the equivalent of putting a auto oil in a MC in terms of detriment to the MC tranny clutches?
I'm wondering if the different additives (or lack of) would lead to accerated wear in a automobile engine, disregarding oil weight?
Wouldn't that be the equivalent of putting a auto oil in a MC in terms of detriment to the MC tranny clutches?
I'm wondering if the different additives (or lack of) would lead to accerated wear in a automobile engine, disregarding oil weight?
Tuned
Joined: Apr 2005
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Motorcycle oils emphasize engine protection over enviro-friendliness. They typically are similar to older automotive oils, such as SF/SG/SH, in terms of additive package.
As far as viscosity goes, MC oils designed for air-cooled engines, are much higher than what is useful in most automotive uses, and even for water-cooled motorcycles.
Keep in mind that flat-tappet cams are very common in MC's, and thus require a different additive package than the roller-tappet cams that are common in modern cars and trucks.
As the owner of an older flat-tappet cammed 460, I am wary about using oils with low ZDDP content in that engine... having said that, there are other additives that can be substituted for ZDDP, but they are generally more expensive, so I am skeptical that motor oil companies are adding them in quantities that are well-suited to flat-tappet engines, since such engines are a diminishing piece of the oil-market pie. I'm sticking to HDEO's in my 460, for now, but I may end up using MC motor oils of the proper viscosity in that engine in the future.
Mr. Hog, this is the first I've heard of 25W-60. Perhaps it's also used in stern-drive boats?
As far as viscosity goes, MC oils designed for air-cooled engines, are much higher than what is useful in most automotive uses, and even for water-cooled motorcycles.
Keep in mind that flat-tappet cams are very common in MC's, and thus require a different additive package than the roller-tappet cams that are common in modern cars and trucks.
As the owner of an older flat-tappet cammed 460, I am wary about using oils with low ZDDP content in that engine... having said that, there are other additives that can be substituted for ZDDP, but they are generally more expensive, so I am skeptical that motor oil companies are adding them in quantities that are well-suited to flat-tappet engines, since such engines are a diminishing piece of the oil-market pie. I'm sticking to HDEO's in my 460, for now, but I may end up using MC motor oils of the proper viscosity in that engine in the future.
Mr. Hog, this is the first I've heard of 25W-60. Perhaps it's also used in stern-drive boats?
Last edited by Big O Dave; Jan 23, 2006 at 07:08 PM.
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From: Running Springs CA
Originally Posted by seldont
I forgot who made the oil for them but I am pretty sure there are some BMW engines spec'd for the 25w60 oil.
Jim