Lower tire dimension and wider tires = Oil Temp goes up easily, From 185x65x15 to 205x50x15 tires Options

[ndfrigi]

Finally completed my 5 lug conversion. But why is my oil temp goes up faster than before. Is it because I have a lower diameter and wider tires? Or just a coincidence that after my 5 lug conversion there was another issue that makes my oil goes up faster than before. On the same weather condition around 65 degrees F, I used to drive my car for about 3 miles around city which my oil temp does not goes up immediately and I only get around 180 degrees but today I drove it and my temp went to 200.

Any experienced you have had or anyone can help me figure out?

Thanks again my fellow teeners and God Bless!

[Dave_Darling]

The flaps under the car are there to create an area of lower pressure under the engine bay. That helps pull the cooling air out from around the engine, allowing more to be pushed in by the cooling fan, resulting in more air flow.

Note that your speedo (unless it's GPS-based) only counts revolutions of the wheel. So your RPMs at a particular speed shown on the speedo should not change when you change wheel/tire size.

I don't have a reason that changing out the suspension bits would affect the cooling of the car. Double-check the flaps, thermostat, and linkage as was already suggested. Also double-check the gauge and wiring as best you can.

I agree that 200F is not a concern. Drive some more and see if the temp stops going up there; if it does then you're fine. If it goes up past 220F then you're right to worry.

--DD