[Petah78]

Just wanted to add another data point to those that are wondering how the FA20 engine wears under aggressive driving/track conditions. I was pondering the idea of adding an oil cooler to my car since it will see some track use but this is my daily and our Canadian winters are harsh, I was not sure if adding an oil cooler would over cool the oil during winter season. In addition, I didn't like the idea of adding additional failure points to my engine for the 3-4 hours of total track use per season. I figured I will do a UOA to see how my engine was doing before deciding if an oil cooler is warranted.

A little info on how I use my car. Though this is my daily, because of covid, I have not been using it much for commuting purposes. It's more of a weekend hooning and occasional track car. While I do drive it aggressively, I never abuse my car. I will always idle the car for about 15-20 secs to allow time for oil to circulate before driving off. I ALWAYS drive like a granny until the oil is fully warmed up. I also never lug my engine. But the car does see multiple redline visits per drive cycle.

Here are the details on my car and oil sample:

Mileage on car: 17,000 miles
Total mileage on oil: 3,000 miles
Track mileage: 120 miles (about 2 total hours of track used broken up into 15-20 mins sections)
Track oil temp: 265-270F
Oil cooler: None
Oil Brand: Pennzoil Ultra Platinum, 5W-30

I am no expert at reading these reports but the results are around the average that I have seen on this forum. Not sure what is going on with the fuel dilution but I suspect it's from the 2nd/last track day as the sample was taken the day after. Lots of WOT where the car is running rich. I am thinking that my engine is wearing perfectly fine and likely will not be adding an oil cooler, if anything, maybe a Forrester unit.

Thanks.