Mixing oil types (5w-20 mixed with 10w-30)
My RV has the ford v-10 in it and I noticed today the oil is closer to the "low" level than the "full" level on the dip stick. I have a few quarts of 10w-30 (might be 5w-30) but I was going to top it ...
Forum Discussion
Anyone know why Ford specifies 5W20 rather than the far more common 5W30 for the E350 engine? I think the 20 and 30 refer to thick it gets when hot.
Here in the north people have often used a grade lighter in winter, as in 20 instead of 30 in the years before multigrade motor oil, and now 0W30 instead of 5W30. They say it is noticeably easier to start the engine at low temperatures. It seems odd to specify the same viscosity regardless of climate.
The same question applies to engine thermostats. In the old days people would install a higher temperature thermostat to make the cabin heater work better. Now it is just too much trouble to change them. We put cardboard in front of the radiator - often forgetting it and overheating the engine in the spring. There has to be a better way.
Here in the north people have often used a grade lighter in winter, as in 20 instead of 30 in the years before multigrade motor oil, and now 0W30 instead of 5W30. They say it is noticeably easier to start the engine at low temperatures. It seems odd to specify the same viscosity regardless of climate.
The same question applies to engine thermostats. In the old days people would install a higher temperature thermostat to make the cabin heater work better. Now it is just too much trouble to change them. We put cardboard in front of the radiator - often forgetting it and overheating the engine in the spring. There has to be a better way.
