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Oil temps too high?

  • Thread starter Thread starter makenzie71
  • Start date Start date
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makenzie71

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What's too high? What's normal operating temp?

It's my 1981 GS750. I'm seeing an average of around 220*f. Hottest I've seen was 238*f while idling in traffic. Where should I get concerned?

Temps are taken from the pressure plug on the filter cover.
 
I wouldn't start to get concern until about 275 degrees F. Synthetic oil is a good hedge since it doesn't thin as much in heat and has better film strength so it stays on the metal parts.
 
I run Rotella T 15-40...I won't run full synth on an engine I didn't rebuild (also don't like running $10/qt oil).
 
Mac Im with Ed on this...Normal indicated running temp on my 1100 is 210, and while its been cool around here, even in the summer i never saw it run at that unless im sitting in traffic. HOWEVER i run a pretty big oil cooler on it, and my 750 would run above 210 pretty normally, never saw any ill effects.
 
My 700 has an oil temp gauge as standard equipment (who knows how accurate it is?), and for the past twenty-four years, "normal" temp on it has been right at 200 degrees. On a 100 degree August day riding across West Texas twenty years ago, it got up to and stayed at about 250-270 degrees for several hundred miles with no ill effects. In tight traffic on hot days it will get up to 240 or maybe a bit higher even, doesn't seem to hurt it.

I have the fairly small stock oil cooler on it, and always run Rotella synthetic 5W-40 oil. It seems to work great and only costs about $18 a gallon at Wal-Mart.
 
Awesome. I just didn't know if I should be worried. My Vapor allows me to set a warning and a critical oil temp light so this will give me a good idea of where to set them.
 
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