The Forester was my fathers car and he put 116,000 miles on the car over the years. He decided to get a new car so I took the Forester off his hands. Besides some hickups in the transmission and normal old age the car is running well. The only bad thing is that it is only gettign about 21 MPG and I can't figure out why.... COuld be a transmission issue but I don't know (Part is due to driving at 70-80MPH but the other part I can't figure out)
He got the oil changed every 3-4K miles and alwyas got it done at a local shop so they probably used a cheap regular type of oil.
I decided to try goign to synthetic to protect the engine better and see if I coulf get some better milage by doign a engine flush. I purchased the engine flush fluid from AMSOIL and used it and then put AMSOIL synthetic 5W30 in the car with an EA AMSOIL filter.
Any comments/suggestion/ideas about this switch? How long do you guys think I can go with this oil and filter before changing it?
He got the oil changed every 3-4K miles and alwyas got it done at a local shop so they probably used a cheap regular type of oil.
I decided to try goign to synthetic to protect the engine better and see if I coulf get some better milage by doign a engine flush. I purchased the engine flush fluid from AMSOIL and used it and then put AMSOIL synthetic 5W30 in the car with an EA AMSOIL filter.
Any comments/suggestion/ideas about this switch? How long do you guys think I can go with this oil and filter before changing it?