BigTDogg MA Posted July 25, 2011 Share Posted July 25, 2011 What was the reasoning behind this? This has got to be the lowest normal interval I've seen. Does this mean people in adverse driving conditions are changing every 2000? IIRC, 3750mi is for extreme (Mt Dew)/adverse driving conditions. I'll be changing every 3750 because it's cheap insurance. Although... For a 15K interval, what filter are you using? That would be my concern more so than the oil itself. Amsoil filter? OEM Subaru? Wix? Mobil 1? K&N? Sock in a soup can? 15K interval on a turbo car scares me in general, but with the right oil and filter combo I could see it working. Link to comment Share on other sites More sharing options...
Max Capacity Posted July 25, 2011 Author Share Posted July 25, 2011 http://www.amsoil.com/catalog.aspx?code=Ea15k12-EA FWIW, I have Amsoil 75w-90 in the 6-speed and the rear diff. Been there for 4,000 miles. I'm also putting Amsoil 75w-90 in the tranny I'm putting back in my 05. That cars newly installed 40,000 mile rear diff got the left over Extra-S I had hanging around. http://www.amsoil.com/storefront/svg.aspx I also received the next two oil sample kits from Blackstone Labs over the weekend. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
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