Quote:
Originally Posted by White_SS/RS
The 2SS has the gauge pod that seems to be accurate. Mine will read well over the 266 seen on the DIC. The last couple track days I've been seeing the oil temps hovering around 300. Normally I wouldn't see that high and would be in the 280 range but that was when I was running 5/30. I think the discussion we've been having on oil weight playing a part in oil temps is what I'm experiencing. Have you had a chance to compare the 5/30 with your previous grade of 0/40 on the Camaro?
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If you use OBD2 reader, you can also read oil temps beyond 266 degrees even on a 1SS (like mine), but at least what I've read was not accurate. After scratching my head since adding DeWitts radiator and even an external engine oil cooler did not make any impact to temps, I finally installed an oil temp gauge and realized that the temps diverge quite a bit. The temp readings I got from the car itself looks to be designed to 'guesstimate' the stock engine's temps.
Regarding engine oil weight, indeed I think that's what you're experiencing. 0W-40 increases temps quite a bit. I only did one track day with the 1LE this year, and that was with 5W-30. I did hit 297 degrees, and ordered a bigger oil cooler core after that, but I have no way of comparing numbers since my data from the former track days are at a different track with obviously different layout and more importantly, different altitude. I did compare oils on the Miata, however, and it seemed to have helped by 15 degrees or so when I switched to 5W-30. Different car, different (supercharger) engine, so I don't know how much would apply here.
Going back to the subject:
- I am not absolutely sure about 2SS gauge pod, but considering you can easily add it to the 1SS (meaning they share oil temp sensor, etc.), I would doubt that it reads real numbers. I would highly recommend an aftermarket gauge.
- Use 5W-30; it survives the track days, and runs the engine cooler. There is probably not even an HTHS viscosity hit, since you run cooler anyway.
- My oil cooler parts will arrive on Wednesday, but I actually have a track day on Thursday, so the new cooler core won't make it. I will try it as soon as I can, though.