Has anyone use Motorcraft 15 40w or 5 40 in their bikes? , is really cheap oil and I would like to heard some opinions .
thanks
thanks
Motorcraft 15 40w or 5 40w
- Thread starter SirPaulGerman
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The 15w40 motocraft is as good as any in that class, used many times , much better shift than Rotella T
and also is cheaper you can by 5 quarts at wall mart for 11 boxs , I would like to try the 5 40w semi blend , but i can not find it anywhere , any ideas where ?
Ive run the Rotella syn 5w40 its competitor, and really the 15w40 holds up much better. I prefer an oil that will hold up a few thousand mile.
especially when you'll pay alot more for the 5w40
especially when you'll pay alot more for the 5w40
i have tested the 15w40.
typical wear.
in 2.8 hrs it was a susvis of 68.0 and flash of 410 with
so in under 3 hrs i turned it into a 30wt.
ymmv
typical wear.
in 2.8 hrs it was a susvis of 68.0 and flash of 410 with
so in under 3 hrs i turned it into a 30wt.
ymmv
I normally ran it 2500 miles and held up fine.
An offroad bike that only holds alittle more than one quart, under offroad race condition is not a very fair comparison to a street bikes the holds near 4 quarts.
You should see alot more degrade in comparison. It doesnt bother me that a 40 weight oil will eventually be a 30 weight.
Those oils are still good for 2500/300 mile, unless they are real weak like a 10w40 car oil or 5w40 diesil and then good up to 1500 mile or so.
An offroad bike that only holds alittle more than one quart, under offroad race condition is not a very fair comparison to a street bikes the holds near 4 quarts.
You should see alot more degrade in comparison. It doesnt bother me that a 40 weight oil will eventually be a 30 weight.
Those oils are still good for 2500/300 mile, unless they are real weak like a 10w40 car oil or 5w40 diesil and then good up to 1500 mile or so.
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but if other 15w40's run more hours and still stay in grade, what does that say?
Most oils shear with enough time epecially in the multi viscosity 40 weight range, that could be through fuel dilution, or oil shear itself. Its all lumped into fuel dilution so you dont really know, which is from which.
I'm nore into oil contamination , shift feel, and cleanliness.
Really, a real factor I'd be interested in , is maintaining a flash point above 400 degree for more than 3,000 mile.
I expect fuel dilitution or shear but with my change intevals its not an issue and adjusted for what ever oil , thats why from tight supermoto backroads to high speed tripple I presently deal with , most oils are good from 1500 to 3000 mile on the street depending on what they are.
If I had to go 8,000 mile on an oil change, say around the U.S. then I'd want an oil capable of doing that, But normally I find frequent changes is still the best wear reducer for a motor. You are ridding contamination in the oil. All that aluminum and iron, is sand paper on your parts, the cam chain is a conveyor belt straight to your cam lobes.
Running a straight 50 weight is not an option, nor most 15w40 diesils, I did like the Motorcraft 15w40 functionally, which had nothing to do with any weight loss over time(cause I saw nothing significant to be worried about), although, to me it held up really well during my 2500 mile intervals and could easlily squeak 3000 mile.
When I was running offroad bikes the oil came out every few hours. But the contamination level is not nearly as bad on the street.
Offroad is 10 x harder on oil
I'm nore into oil contamination , shift feel, and cleanliness.
Really, a real factor I'd be interested in , is maintaining a flash point above 400 degree for more than 3,000 mile.
I expect fuel dilitution or shear but with my change intevals its not an issue and adjusted for what ever oil , thats why from tight supermoto backroads to high speed tripple I presently deal with , most oils are good from 1500 to 3000 mile on the street depending on what they are.
If I had to go 8,000 mile on an oil change, say around the U.S. then I'd want an oil capable of doing that, But normally I find frequent changes is still the best wear reducer for a motor. You are ridding contamination in the oil. All that aluminum and iron, is sand paper on your parts, the cam chain is a conveyor belt straight to your cam lobes.
Running a straight 50 weight is not an option, nor most 15w40 diesils, I did like the Motorcraft 15w40 functionally, which had nothing to do with any weight loss over time(cause I saw nothing significant to be worried about), although, to me it held up really well during my 2500 mile intervals and could easlily squeak 3000 mile.
When I was running offroad bikes the oil came out every few hours. But the contamination level is not nearly as bad on the street.
Offroad is 10 x harder on oil
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Originally Posted By: SirPaulGerman
Has anyone use Motorcraft 15 40w or 5 40 in their bikes? , is really cheap oil and I would like to heard some opinions .
thanks
Well, what kind of bikes?
Water-cooled or air cooled?
Street, dual-sport, or off-road?
Rotella 15W-40 is a favorite among many street riders in many different models of water-cooled bikes. It's OK for cooler temperatures in air-cooled bikes. Motorcraft 15W-40 is a decent oil and in the same category but there's so much accumulated data on the Rotella than many riders just use the Rotella. Is there a price point advantage to using the Motorcraft 15W-40?
Take a look over at the motorcycle used oil analysis section and you will find the technical info.
Has anyone use Motorcraft 15 40w or 5 40 in their bikes? , is really cheap oil and I would like to heard some opinions .
thanks
Well, what kind of bikes?
Water-cooled or air cooled?
Street, dual-sport, or off-road?
Rotella 15W-40 is a favorite among many street riders in many different models of water-cooled bikes. It's OK for cooler temperatures in air-cooled bikes. Motorcraft 15W-40 is a decent oil and in the same category but there's so much accumulated data on the Rotella than many riders just use the Rotella. Is there a price point advantage to using the Motorcraft 15W-40?
Take a look over at the motorcycle used oil analysis section and you will find the technical info.
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Originally Posted By: sunruh
i have tested the 15w40.
typical wear.
in 2.8 hrs it was a susvis of 68.0 and flash of 410 with
so in under 3 hrs i turned it into a 30wt.
ymmv
So did you try any of the 5W-40's? Please don't make me go and look up your posts.
I was under the impression (perhaps mistaken) that the 5W-40's don't hold viscosity all that well?
Thanks
Kevin
i have tested the 15w40.
typical wear.
in 2.8 hrs it was a susvis of 68.0 and flash of 410 with
so in under 3 hrs i turned it into a 30wt.
ymmv
So did you try any of the 5W-40's? Please don't make me go and look up your posts.
I was under the impression (perhaps mistaken) that the 5W-40's don't hold viscosity all that well?
Thanks
Kevin
motorcraft 15&40 in only 10 dollars for 5 Q in wallmart
motorcraft 5&40 blend i can not find it anywhere but i assume is cheaper by far compared to the 5&40 rotella , i wonder if pretty much both oils have the same behavior.
motorcraft 5&40 blend i can not find it anywhere but i assume is cheaper by far compared to the 5&40 rotella , i wonder if pretty much both oils have the same behavior.
Many run the 5w40 Rotella syn, In my vfr it will drop to 30 weight in less than 1100 miles. I stopped running it for that reason. Too expensive too degrade that fast. Amsoil 15w40 would easily double that milege to get the same result of degrade.
Go 15w40 its a double Longevity oil in comparsion, I prefer the Motorcraft or Amsoil over the Rotella 15w40, shift wise.
Rotella shifted so notchy, I couldnt stand it, and it came out in less than 500 mile
Go 15w40 its a double Longevity oil in comparsion, I prefer the Motorcraft or Amsoil over the Rotella 15w40, shift wise.
Rotella shifted so notchy, I couldnt stand it, and it came out in less than 500 mile
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Originally Posted By: kballowe
So did you try any of the 5W-40's? Please don't make me go and look up your posts.
I was under the impression (perhaps mistaken) that the 5W-40's don't hold viscosity all that well?
Thanks
Kevin
kevin,
yes i tested blue jug SRT 5w40.
i LOVE how it pours out of the jug.
i dont love the cSt@100C of 12.59 after just 2.5 hours with a flash of 400 and a pretty darn good cold weather oil. for limited useage. so why buy it?
however, compare it to GC.
it went 3.1 hours and gave a flash of 405, <0.5% susvis of 61.3. which was not close to going out of its grade and actually finished HIGHER than almost all of the 10w40s i've tested.
So did you try any of the 5W-40's? Please don't make me go and look up your posts.
I was under the impression (perhaps mistaken) that the 5W-40's don't hold viscosity all that well?
Thanks
Kevin
kevin,
yes i tested blue jug SRT 5w40.
i LOVE how it pours out of the jug.
i dont love the cSt@100C of 12.59 after just 2.5 hours with a flash of 400 and a pretty darn good cold weather oil. for limited useage. so why buy it?
however, compare it to GC.
it went 3.1 hours and gave a flash of 405, <0.5% susvis of 61.3. which was not close to going out of its grade and actually finished HIGHER than almost all of the 10w40s i've tested.
We run the SRT 5W40 as winter fill in our Harleys (when the temps get down under 50). I like the idea of a 5W when I leave the house at 25 degrees. The OCIs are short.
It also works well in the primary chaincase in the colder temperatures.
Thanks
It also works well in the primary chaincase in the colder temperatures.
Thanks
for short OCIs (ie winter) SRT 5w40 is ok.
however, i do have a riding buddy that ran nothing but delvac 5w40 for years. he broke tranny gears in 3 bikes while using it. after switching to 15w40 he has not broken a gear. now, if you *could* toss out all the other variables, you could point at the lower susvis oil, BUT (big but) can you really throw them all out?
imho i dont think you really can, but the facts speak for themselves.
however, i do have a riding buddy that ran nothing but delvac 5w40 for years. he broke tranny gears in 3 bikes while using it. after switching to 15w40 he has not broken a gear. now, if you *could* toss out all the other variables, you could point at the lower susvis oil, BUT (big but) can you really throw them all out?
imho i dont think you really can, but the facts speak for themselves.
In my case, it doesn't matter too much as the Harleys have separate transmissions.
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