[BrahmaBull1990]

Originally Posted by Ultramaroon

Spec/test oil temp is 176 F (80 C). The whole boiling thing is just wrong. We don't bake our clothes to dry them. Oil pressure drops off sharply as temp increases but here's the rub. Is that bad? We really don't know because the operating limits aren't published.

I can say this for sure. Before my oil cooler, I could literally hear/feel my engine begin to rattle (queue the flamers) as the oil began to break down after about 3500 miles. I never even paid attention to the odometer. I just drove until I didn't feel comfortable with it anymore. Again, is that bad? I don't know, but the drop in viscosity was real.

With the cooler it feels fine right up to the 7500 mile interval. I've gone over because, again, I don't really keep track. I just go by feel. I wish I had done UOA before the cooler but I only considered it after I got involved with this forum.

Thanks for the information. Since we are both in WA (looked up Vantucky; that is hilarious), I can relate. My oil changes have all been around 3k. My problem here is the oil take so long to heat up. Sometimes driving around town I feel like I need to baby it because my coolant is at operating levels, but my engine oil is barely registering.

The OEM WRX oil cooler someone posted looks good as it can heat the oil up too. I'll just have to watch temps like a hawk this summer.

...Vantucky...still laughing.

Vancouver,WA: The Armpit of Portland, OR, as opposed to it's butthole (Gresham). A city composed of yuppies, rednecks, outlaws and tweekers. Tweekers are meth addicts who twitch, obviously, and ride 10 speeds with a microwave balanced on the handlebars and a cart of cans trailing behind.

per Urban Dictionary