Recent content by DaveWRX

Factory recommends 5w30 Mobil 1 at 5k miles, which is what I've been doing--either regular M1 or Extended Performance. Car now has 106k miles. I drive it hard pretty often. I autocross it and it's my daily driver. Not burning any oil. This is a ~300 HP turbo inline 4. So, should I stick with...

They recommend 5W30 for temperatures under 100F and 10W30 or 10W40 for temperatures over 0F.

Hmm. I really don't think my driving is that extraordinarily hard compared to other WRX drivers. I'm very careful not to hit boost until the engine is thoroughly warmed-up. 95% of the time I'm just cruising along at under 3k rpm. A couple times a day I'll do full-throttle runs up to 60-70 mph...

My first analysis, which was done by Blackstone: ---- Oil Use Interval: 7,183 mi Make-Up Oil Added: 0 qts Fuel Type: Unleaded premium gasoline (93 octane) Equipment Type: 2.0L Turbo Comments: Lead (bearings) read fairly high in the initial sample from your Subaru. Mi on Unit: 34,433...