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As I try to run my car at least once a month over the winter I do not do anything special to winterize. I had been covering it but am thinking in a closed insulated garage maybe better than putting the cover which might have dirt that would scratch on it. Any thoughts? I also have got in the habit of changing the oil and filter in early Spring rather than in early winter? Any thoughts on that? Thanks..
Change oil before you put it away and then just let it sit.
If you don't get the oil good and hot (200+ F), then moisture will accumulate in the crankcase when you run the engine. The oil takes longer to heat up than the coolant.
Mine has sat for 8 months while deployed with no issues.
Change the oil before storage if it is not synthetic. Dino oil can turn acidic just sitting around. That is the very reason I use synthetic oil in my car. It can run for a whole year on one change (maybe 2-3 filter changes during that time) and the oil doesn't "age".
I used to start mine every few weeks in the winter (I have exhaust hoses that vent outside) and thought I warmed it up each time. Then I noticed that water spattered out the exhaust when I started it. My theory is that idling it for a long while doesn't clear the water from low spots in the exhaust.
Now I just drive the car to and from work one day before temps don't get above freezing (VERY soon) and let the engine rev up a bit. Then I top off the gas tank, put the car on the lift, change the coolant, oil and filter, hook up an automatic battery tender, cover it with a good made-for-C3 cover, and raise it up so I can use the space under it until I get around to replacing the body mounts this winter. It doesn't run until I get it out in the spring.
Change the oil before storage if it is not synthetic. Dino oil can turn acidic just sitting around. That is the very reason I use synthetic oil in my car. It can run for a whole year on one change (maybe 2-3 filter changes during that time) and the oil doesn't "age".
Synthetics do turn acidic in the presence of moisture. Aviation oils are very similar to automotive oils in this respect
Change oil before you put it away and then just let it sit.
If you don't get the oil good and hot (200+ F), then moisture will accumulate in the crankcase when you run the engine. The oil takes longer to heat up than the coolant.
^^ What he said. Just go in once a month (or more if you like) and tap the brake pedal a coupla times to keep the brake caliper seals free. If they sit too long, that's when leaks occur.
At what "rate" when compared with organic oils, Mike? Apples and oranges....
As the article extract states, synthetic turns acidic at a faster rate than dino. The rate is related to starting pH, level of water contamination and level of absolute humidity in the air.
I used to manage a fleet of over 1,000 engines for worlds largest manufacturer of gas turbines. Those going into storage had to be drained of all oil to eliminate any possibility of acid degradation. Engines in service but 'parked' temporarily had to have a pH test done every few weeks. If pH dropped below 4.0 (which was common) the oil was to be changed or at minimum the engine run for half an hour to drive off the moisture.
All I'm saying is that synthetic oils are not a better choice for storage than dino.
I don't know about you, Mike, but I'm not really using aviation oil used with gas turbine engines. I think its formulation may be a bit different than Amsoil, et al....
This might be a more appropriate site to check out: