I saw a topic about oil temp gauges and started looking through my McMaster-Carr cataloge. I found this (if the link works, if not page 524 of your cataloge) it's an elbow oil sight gauge that has a 250+ degree dial at the elbow. I think the look alone would warrent drilling and tapping. It's for non-presser applications such as gear boxes, crankcases, etc.
It comes in a ton of sizes too, and you get to see a good amount of your oil which would give you a better indication of the state it's in. Just an idea. It is vented oil-level indicator 5. The one with the temp dial on it
http://www.mcmaster.com/#oil-level-indicators/=c91zen
For some reason you have to click this link then at the highlighted are near the top click "liquid-level indicators and if you scroll down a little bit it is the male elbow one with temp dial. Sorry it's so difficult maybe someone can link it better than me.
It comes in a ton of sizes too, and you get to see a good amount of your oil which would give you a better indication of the state it's in. Just an idea. It is vented oil-level indicator 5. The one with the temp dial on it
http://www.mcmaster.com/#oil-level-indicators/=c91zen
For some reason you have to click this link then at the highlighted are near the top click "liquid-level indicators and if you scroll down a little bit it is the male elbow one with temp dial. Sorry it's so difficult maybe someone can link it better than me.
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