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92hummer · 05-08-2010, 07:26 PM

There has been much conversation regarding where to obtain Delo 100 40W oil which is the engine lubricant required for the Detroit 2 cycle engines. Regardless of what you may have read or heard Delo 400 and Delo 100 are not the same. The needs of a 2 cycle engine are different than those of the 4 cycles.

I found a dealer in Grants Pass, OR that not only markets Delo 100 but at a reasonable price.

Colvin Oil Co. is a great source.

I just drove in and stocked up on enough for several oil changes and thought other RV'rs might be in need as well so here you are. I didn't think to ask if they shipped but I'm sure a phone call would take of that question.

Mike Canter · 05-09-2010, 06:54 AM

Are there RVs out there with 2 cycle diesel motors? If so which ones?

Gary RVRoamer · 05-09-2010, 07:04 AM

Most older Bluebird Wanderlodges have Detroit Diesel 2 cycle diesels. Older Prevost's too. The Detroit Series 60 4 cycle diesel was introduced in 1988, so 'Birds and Prevosts older than that usually have a 2 cycle Detroit.

Mike Canter · 05-09-2010, 07:42 AM

I didn't know that. That is interesting. 2 cycle diesel engines are or were bigger in marine applications. All US diesel powered submarines had locomotive diesel engines and were all 2 cycle made by GM (now Detroit) and Fairbanks Morse. I talked to a guy in a Flying J once that had bought and converted and old Greyhound Scenie Cruiser which has the raised level about halfway back. He had taken out the old motors (notice I said motors) and converted it to a Detroit 60. It originally had two motors in it so if it was on a straight and level road it could shut off one motor and cruise. If it needed the power it could start up the other motor. So according to what you say these were most likely 2 cycle motors.

Just another intersting fact. Those older 2 cycle submarine/train motors had two opposing pistons in each cylinder and two crankshafts, one at the top and one at the bottom. The pistons came together in the middle when and they fired.

92hummer · 05-10-2010, 09:16 AM

Quote:

Originally Posted by Mike Canter

Are there RVs out there with 2 cycle diesel motors? If so which ones?

During the 50's thru the 80's virtually every truck and bus on the highway was powered by Detroit 6V92 or 8V92 engines. Many of the high end RV's also fell into that category. We have a 1992 Foretravel with a 6V92. The engines design is unique in that they have both a blower and a turbo. When the power is no longer required the blower is automatically bypassed and the turbo provides the required boost. A feature to increase fuel mileage. There are still thousands of the Detroits on the road and in large boats.