David -
Possibilities:
1) What kind of oil are you running? Some oils hold their viscosity at
high temperatures better than others. Your message doesn't indicate
whether things had a chance to cool off anywhere along the way.
2) Oil pressure relief valve stuck partially open after the initial
highway run, bleeding some of the pressure off when you were idling.
The second highway run freed it up.
3) Warning system short, as you indicated.
If it doesn't recur, I'd be thinking along the lines of #2.
Chris K.
DLancer7676@cs.com wrote:
>
> Strangest thing. I ran down the interstate in my Midget yesterday. Ran
> about 70 MPH, which translates to 4000 rpm, for about 10 miles. When I left
> the interstate at the exchange and stopped at the stop sign my oil light came
> on. When I revved the engine it went out, then when I let off the gas and
> went back to idle it came on again. Revved again and it went out. Stoplight
> changed and I drove to my destination, then back home up the Interstate
> without the light ever coming on again. I am driving it to work
> tomorrow--about 30 miles one way. I will keep a sharp eye on the oil
> pressure light.
>
> Any ideas as to what is happening there? Short in the warning system? Temp
> guage stayed cool all the time.
>
> --David C.
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