Ed, passing along types of oils makes a very good topic. The higher temps would
fit into a retired person criteria or called snow birds. Few thoughts might pass along
about engines and oils over my long working career as cat mechanic we were required
to pull oil samples than and now cannot stress enough about taking oil sampling at
each oil change. There are two main things in preventing engine failure. One oil samples
will tell a person after base line sample taken ( what is going on with wear inside of
engine ). Oil sample will tell by count break down of all metals used in the engine along
With fuel in oil, oil in antifreeze, rod bearings, main bearings, cam bearings, cam followers,
oil pump, injectors, rings etc. Second get a cat ET readout and setup base line of
values inside engine, fuel pressures, atmosphere, boost pressure, intake temp, heating
History, derate of engine, active fault codes, event codes. Fuel pressure and injection
pressures are very important to have a base for troubleshooting ( very important )
The type of oil a person uses really is a personal choice, using SOS sampling and finding
out oil sample report readout is very important. The Cat dealer more than likely is making
there statement based on oil sampling. Still many factors involved type of use engines
we're involved in ( on road pavement, off road gravel extreme dusty conditions etc. )
Motorhome in most cases are not involved in much off road dusty conditions, or much
extreme cold below zero for long periods, and yes some are.
Dave Atherton Retired Cat Mechanic
