GL4 and GL5 Oil Can I Use 75w140 Instead Of 75w90
Can I use 75w140 instead of 75w90 in 2003 WRX? 75w140 can't harm it, though you may notice a bit slower acceleration and worse MPG. I used Amsoil 75w140 instead of factory 75w90 in my battle wagon for long We're joined by Mike Bolio from Mobil 1 to talk about differential oil. You should change your rear axle gear oil depending on the NEVER USE GEAR OIL IN DIFFERENTIALS. ...