I had a similar issue in Colorado. Gowesty 2450cc. Automatic. Going over a pass at 3pm full sun. Buzzer went off. Oil pressure was fine based on my aftermarket gauge so I think it was the fact that it was the hottest part of the day and I also just switched to a lighter weight 15w50 synthetic oil.

Only happened that one time, I did stop immediately and let things cool down since it was really hot out. Never happened again.

Abel. On Aug 20, 2015 4:18 PM, "Stan Shapiro" <mail@stanshapiro.com> wrote:

> 90 Westy, 2.2 Gowesty WBX, Automatic > > > > Going up a mountain pass on Interstate 90 in Montana, went up the pass at > the usual 50mph, crested the pass, then on the way down, the oil light and > buzzer went off for about a total of 20 seconds, then it went off on its > own > while I was still driving. NO room to pull over due to construction. > Light and buzzer remained off. Pulled off an exit, checked the oil which > was fine ( closer to full). Drove another 40 miles home, with no > problems, the van drove as normal, no oil buzzer or light. The only > recent change to the van was a new water pump. > > > > Any thoughts??? > > > > stan >