I called my local oil distributor in search of 40WT oil and they recommended Castrol Assuron 40WT specifically for a DD. It is API CF-2 and has an ash content of .80. Would this be OK to use or should I stick to the Shell Rotella or Delo 100? It is $12.70/gallon. Just wanted to get some feedback before I purchase any.
Thanks !!!
You are better off with anything besides the Rotella in a 2 stroke lol
good luck
We'll I did the oil change and we took the bus on a short 200 mile trip. We used to leak oil no matter what (I figured typical Detroit). We arrived at our weekend destination point and set up camp. After a couple of hour I checked under the bus to see if the oil helped the leaks,,,and there were none. WOW!! The PO most have used 15-40wt. Thank you bus gurus for the threads that said to stick to straight 40wt! What a difference!
I would recommend anyone that buys a used bus to change the oil right away. You never know how many miles or month/years is on the oil. For a 2 stroke you have no idea if the right weight oil was used. I had the oil in my bus changed before I drove it 1,400 miles home.
It really isn't that hard to find 40 wt CF-2 oil. Around here Mills Fleet Farm has a house brand made by one of the big oil guys right on the shelf. If I had a 2 stroke I would run that before 15W40.
Mine used to smoke to beat all and leak a lot of oil. With the right stuff mine slowed both leaks and smoke.
Yes the same here the bus had been on 15-40 and when I got it in SC I had williams chang to detroit 40 wt before the roadtrip home . now this thing hardly uses any oil at all. I used up all the detroit oil on achange and had to get Delo now Jerry
Jerry the DD brand oil is Mobil Delvac 1240 best oil you can use in a 2 stroke fwiw
good luck
Clifford, It is getting so hot, I'm thinking of the 50 wt now lol. It was so hot one summer that straight STP ran out of the can (remember the cans?) ;D ;D
As a matter of fact, Detroit Diesel recommends sae50 weight in their 149 series used in hot mining operations. If you have a block heater, 50 weight wouldn't be bad for very hot weather. Good Luck, TomC
A matter of fact DD recommends 50w for any 2 stroke with ambient temps over 100F or water temp at 200F
good luck