Winter storage - Oil Change in fall or spring?
About to store my Motorhome for the winter months. Do people recommend changing the oil in the fall before storing or in the spring. (I use synthetic oil if that makes a difference.
Forum Discussion
usersmanual wrote:John&Joey wrote:
Old school logic.
If you live in cold country or the south then in the Fall. Get's all the acid out of the oil and won't run the risk of etching the main rod bearings.
If in the mid section of lots of freeze/thaw then in the spring before startup. Get rid of the moisture that can accumulate over the months that would tear up the main rod bearings.
YMMV
sorry man with todays oils and engine bearings there is no such thing
what moisture? where does it accumulate and how?
Hmmm, back when I was flying we always filled the gas tanks after a flight to keep the air space to a minimum in the fuel tanks. The logic was that air space contained air and air traps moisture (humidity) which with temp changes would condense out into water going into the fuel. (We'd also drain the water out of the bottom of the tanks before a flight as part of the pre-flight inspection.) Unless you have an air-tight crankcase or fill it to the top with oil I can't imagine why the same thing couldn't occur in a crankcase. All of which would tell me to change the oil in the Spring unless the engine was run periodically during the storage months and brought up to temperature so the water vapor could be driven off.
