Engine overheating
Can old antifreeze cause the engine to overheat. The tester shows that it is still okay for minus 45 degrees celsius.
Forum Discussion
What motor do you have? I have not seen it listed. Here is what I recently ran into...
When I first bought my RV... third or fourth hand... it ran waaaaay hot... overheated on the way home, etc. Once home, we didn't drive it much as we use it as base camp when racing, and it typically stays in the campground. We remodeled it... then rebuilt the engine. Had the Radiator rebuilt shortly after. Still, always ran on the hot side but tolerable. This year it started running 'too' hot again, So I started investigating and eventually decided to replace the thermostat. Because nothing else has been cut and dry in my experience, I did some research. Sure enough... the Thermostat in my RV motor was 'special' and does not come up in the listing for the engine. There was supposedly a sticker at one time on the air cleaner explaining this, but it has been long gone. The descriptions of what happens with the 'wrong' or recommended Thermostat from the parts store described my experience perfectly, so I took and chance, and ordered the special "skirted" thermostat as a replacement. (No one had one in stock) When I did the work, sure enough, it had a regular open thermostat installed. Essentially, when new, fresh, and clean, the open thermostat will get you by for a little while, (still on the hot side) but as the antifreeze, the engine, and the radiator gunk up, it will no longer suffice and eventually overheat.
I JUST did the work yesterday... testing in the driveway, seemed to solve the problem. First real test will be tomorrow when I drive it back to the racetrack campground. But... if you have tried everything else, might want to look into this as well.
When I first bought my RV... third or fourth hand... it ran waaaaay hot... overheated on the way home, etc. Once home, we didn't drive it much as we use it as base camp when racing, and it typically stays in the campground. We remodeled it... then rebuilt the engine. Had the Radiator rebuilt shortly after. Still, always ran on the hot side but tolerable. This year it started running 'too' hot again, So I started investigating and eventually decided to replace the thermostat. Because nothing else has been cut and dry in my experience, I did some research. Sure enough... the Thermostat in my RV motor was 'special' and does not come up in the listing for the engine. There was supposedly a sticker at one time on the air cleaner explaining this, but it has been long gone. The descriptions of what happens with the 'wrong' or recommended Thermostat from the parts store described my experience perfectly, so I took and chance, and ordered the special "skirted" thermostat as a replacement. (No one had one in stock) When I did the work, sure enough, it had a regular open thermostat installed. Essentially, when new, fresh, and clean, the open thermostat will get you by for a little while, (still on the hot side) but as the antifreeze, the engine, and the radiator gunk up, it will no longer suffice and eventually overheat.
I JUST did the work yesterday... testing in the driveway, seemed to solve the problem. First real test will be tomorrow when I drive it back to the racetrack campground. But... if you have tried everything else, might want to look into this as well.
