Best place to put Temp probe

A56 said

If you don't trust your dash temp gauge where's the trust value for troubleshooting?

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I guess I meant more for calibration purposes. To compare the two readings and correlate what the dash gauge says and decide if its "close enough" or should be repaired/replaced. I like the look of stock if I can keep it and I can correlate it. So an option allowing both probes is best.

I went the IR gun way, but wanted to check it through drive cycle on very hot days without jumping out to shoot it. Just a comparison of the gauge if possible while I drive.

So it sounds like I need to use the stock port or possibly find an extended t-stat cover to use both. That is helpful.

RGAZ