On 9/11/05, Anthony Galioto <[EMAIL PROTECTED]> wrote: > > I took a small trip about 125 miles of highway driving at 65-75 mph. The > car is a 1983 240D with 63,000 miles on it in good condition. It was a hot > day 83+ degrees. After exiting the turnpike and stopping for a light, I > noticed that the oil pressure gage was fluttering on or about the number 2 > on the gage. It normally stays on the 3 which is the max when at idle in > local driving and at idle. The water temp stayed on a constant 80C highway > and local driving. The fluttering is in concert with the rhythm of the > engine. As the car is shut down even for a short time the pressure returns > to the normal 3 at idle without the flutter. It seems to me that the oil > gets too hot and thins too much at highway speeds and returns to normal as > it thickened during local driving. The oil being used is Mobil-1 EXTENDED > PERFORMANCE 15W-50 with maybe 100 miles on it since the last oil change. > My question, is there damage being done by the oil or is there a minor fix? > I'm thinking the small rubber gaskets in the oil filter might leak the > pressure at higher RPMs and therefore result in the pulsations of the oil > pressure at idle. They have never been changed, I am the original owner of > the car. > > My second problem occurred at the same time. I pushed the trip meter on > the speedometer because I wanted to check the fuel mileage on this trip. I > haven't ever checked it and am curious per the recent discussions on this > list. After it registered 100 miles it stopped registering. The speed needle > is working fine so I did not notice when the gage stopped recording. The > total miles odometer stopped recording also at that time. When I noticed the > problem I clicked it back to zeros. It still doesn't record, any > suggestions? Thanks
Anthony
