No, but I have used the sae 30w and wouldn't fear the 20w50. But consider, I'm not afraid to use any 10w40, 20w50 name brand,off the shelf, current spec, oil in my bikes.
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Exxon Superflow 20w50, 73 miles, 01YZ250F
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Those EFM clutches are great. They are designed and built by Gary Buzzelli in a small shop in Ohio. He's been at it for over 10 years and does a great job. They look so nice you might want to put one on your desk on a display stand. I can't imagine having the energy to wear one out and if you ride in the canyons and shif a lot they are kind of fun.
I got two quarts of the exxon 20W50 today at autozone. I have been using rotella 15W40 for the past two changes and had planned on sticking with that but I also have a gallon of the delo 400 and delvac 1300 that i wouldnt mind trying as well.
-Hopefully I will get to try out the exxon and hopefully it will hold up well. I have not sent any samples in yet as I change out both sides after every two rides.
-Hopefully I will get to try out the exxon and hopefully it will hold up well. I have not sent any samples in yet as I change out both sides after every two rides.
Saw it at home depot today in the lawn and garden dept. 1.79
I really couldnt answer that as I am still learning how to read used oil analysis. Hopefully someone will have a more informative answer for us. I change my oil out on my crf250r about every two rides so I am not as concerned about how long I can go on the superflo but do want to try it out here soon
-Guess I need to go to home depot and see about that. Maybe try the Pepboys too with the coupons.
-Guess I need to go to home depot and see about that. Maybe try the Pepboys too with the coupons.
The two-stroke 250 only has the trans. to lubricate with the sump fluid. The crank and piston bearings, as well as the rings and cylinder are lubricated by the pre-mix oil.
The thumper 250 has nearly the identical transmission to lubricate, but also the crank and piston bearings, the cylinder walls, solid valve lifters, and the cam lobes and plain bearings the dual overhead cams ride in.
So yes, the thumper is harder on the sump fluid than the 2 cycle engine.
I have owned both types of engines for years and I always follow the same OCI for all of them. No more than 4-6 hours total run time. And I also feel the oil is probably still up to task at that point...but my concern after those hours is contamination from the clutch assembly, which is something that happens and can't be stopped.
So, the answer to an engine that sees frequent contamination is to change the fluid out on an early and often basis.
Well built oils with bargain basement prices, like Super-flo, fits the bill quite well for both 2 and 4 cycle bike engines.
The thumper 250 has nearly the identical transmission to lubricate, but also the crank and piston bearings, the cylinder walls, solid valve lifters, and the cam lobes and plain bearings the dual overhead cams ride in.
So yes, the thumper is harder on the sump fluid than the 2 cycle engine.
I have owned both types of engines for years and I always follow the same OCI for all of them. No more than 4-6 hours total run time. And I also feel the oil is probably still up to task at that point...but my concern after those hours is contamination from the clutch assembly, which is something that happens and can't be stopped.
So, the answer to an engine that sees frequent contamination is to change the fluid out on an early and often basis.
Well built oils with bargain basement prices, like Super-flo, fits the bill quite well for both 2 and 4 cycle bike engines.
Ran the superflo 20W50 with no ill effects in my crf250. Just dumped the rotella dino after 515 miles in my zx9r and put in the superflo 20/50 and went for a 65 mile ride. Shifting seemed as smooth as with the rotella (brand new oil too so...) but I plan on running this to about 1500-2000 miles and see how it does.
Any thing wrong with me using the rotella dino that I pulled from the zx9r that only had 515 miles on it in my crf??
Any thing wrong with me using the rotella dino that I pulled from the zx9r that only had 515 miles on it in my crf??
I'm fairly certain the CRF has seperate sumps. But, I would never use any used oil in a high performance race bike, wet clutch or not.
We are talking what...a buck or two savings?
Why would you want to introduce additional swarf to your CRF's sumps?
Do this:
Do a search on the posts of the original supplier of this thread. You will see just how long it takes to shear down just about any oil in a modern 4T racing engine with just one cylinder.
We are talking what...a buck or two savings?
Why would you want to introduce additional swarf to your CRF's sumps?
Do this:
Do a search on the posts of the original supplier of this thread. You will see just how long it takes to shear down just about any oil in a modern 4T racing engine with just one cylinder.
The crf does have seperate sumps. Only reason I was asking was zx9r is usually not ridden unless I am going on at least a 30-45 trip steadily on the highway at around 70-75mph. I only use the clutch when starting out and downshifting. So i just assumed the oil was not in that bad a shape.
But you did bring up a good point. That was the reason for asking as I did not know if it would do any harm.
I have read all of sunruh's used oil analysis. that is where I learned about the superflo 20/50
thanks for the reply
But you did bring up a good point. That was the reason for asking as I did not know if it would do any harm.
I have read all of sunruh's used oil analysis. that is where I learned about the superflo 20/50
thanks for the reply
Copied this from one of your other post. Good points btw
It is merely my opinion, but I feel that bikes that have a wet clutch situation demand a different oci than does a dual sump engine. The contamination from the clutch assembly is created much faster than the fluid's protecting properties degrade.
Due to the fact that the oil gets dirty faster than it wears out, the oci should be based more on the content of contaminant, than on the remaining effectiveness of the fluid.
It is merely my opinion, but I feel that bikes that have a wet clutch situation demand a different oci than does a dual sump engine. The contamination from the clutch assembly is created much faster than the fluid's protecting properties degrade.
Due to the fact that the oil gets dirty faster than it wears out, the oci should be based more on the content of contaminant, than on the remaining effectiveness of the fluid.
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