Oil type with viscosity = M1 5W-30
Miles on the oil = 3,799
Vehicle type = Subaru Forester XT Turbo 2.5L H4 (Boxer)
Oil in service = 2.5 months
Driving style = Agressive
Oil Filter = OEM Subaru
Air Filter = Green Filter
Season = Winter and cold here, oil temps range from 140 - 170°F at highway speeds.
I have the a write up on my site here:
http://www.scoobymods.com/forums/showthread.php?t=4718
But you need to register (it's free) to see it. This is a cut and paste of the important stuff:
I've reached the 30,000 mile mark on my 2004 Forester XT. I decided to have my oil analysis done to see how the motor is doing. I've been a little concerned of late because the overflow tank for my anti-freeze seems to need a little topping off from time to time to meet the cold mark when cold. With all the head gasket problems around I was a little worried. Some quick background on how I broke in the motor other than the taking it easy up to 1K miles.
I've only used OEM Subaru Oil filters to date and change it every time I change the oil. I did my first oil change at 1,000 miles with Castrol GTX 10W-30 standard (dino) oil, then changed it at 4, and 7K with the same type of oil. At 10,000 I switched to Royal Purple 10W-30 Synthetic and kept with the 3,000 mile change intervals. I did switch to Moble One 10W-30 Synthetic at around 23,000 miles. In the winters colder months I run 5W-30 weight oil. Other things, I put in a bottle (the large one that treats 20 gal) of TechTron Fuel system cleaner every 4-5K. I've installed a Catch Can on the motor. I've been running w/o the intake silencer and a Green Filter installed for most of the motor's life. A Green Filter is similar to a K&N Washable filter but IMHO better quality.
Regards,
[ February 17, 2005, 12:42 AM: Message edited by: Peaty ]
Miles on the oil = 3,799
Vehicle type = Subaru Forester XT Turbo 2.5L H4 (Boxer)
Oil in service = 2.5 months
Driving style = Agressive
Oil Filter = OEM Subaru
Air Filter = Green Filter
Season = Winter and cold here, oil temps range from 140 - 170°F at highway speeds.
I have the a write up on my site here:
http://www.scoobymods.com/forums/showthread.php?t=4718
But you need to register (it's free) to see it. This is a cut and paste of the important stuff:
I've reached the 30,000 mile mark on my 2004 Forester XT. I decided to have my oil analysis done to see how the motor is doing. I've been a little concerned of late because the overflow tank for my anti-freeze seems to need a little topping off from time to time to meet the cold mark when cold. With all the head gasket problems around I was a little worried. Some quick background on how I broke in the motor other than the taking it easy up to 1K miles.
I've only used OEM Subaru Oil filters to date and change it every time I change the oil. I did my first oil change at 1,000 miles with Castrol GTX 10W-30 standard (dino) oil, then changed it at 4, and 7K with the same type of oil. At 10,000 I switched to Royal Purple 10W-30 Synthetic and kept with the 3,000 mile change intervals. I did switch to Moble One 10W-30 Synthetic at around 23,000 miles. In the winters colder months I run 5W-30 weight oil. Other things, I put in a bottle (the large one that treats 20 gal) of TechTron Fuel system cleaner every 4-5K. I've installed a Catch Can on the motor. I've been running w/o the intake silencer and a Green Filter installed for most of the motor's life. A Green Filter is similar to a K&N Washable filter but IMHO better quality.
Regards,
[ February 17, 2005, 12:42 AM: Message edited by: Peaty ]
