two4spooky
Bronze Member
Excellent reasoning, I agree with your comparison with an occasional use tractor with a car, and for that reason I wondered about the 200 hour intervals I inquired about...I don't use my Deere running hard for hours a day, every day, but I try to plan my use so it gets at least an hour or more of running time so the engine gets hot, with every time I take it out.
Appears I may have unrealistic expectations about synthetic oil, I have never used it in any car, truck, or tractor I have owned over 40 years of operation. From what I have read, it allows you to extend oil change intervals in certain cases, and I was wondering now that I have extended my change intervals from 50 hours to 100 hours, using a synthetic would stretch that period even more. Not that I mind changing the oil, compared to the headache of oil and filter changes on my Saturn L-300, my tractor is really easy.
An important point being overlooked is oil capacity. Big rigs often have an oil capacity of 8 or 9 GALLONS vs 8 or 9 quarts for the CUT. If you carried four times the amount of oil in the pan you could easily go four times as long between changes.