B bubbatime Joined Mar 18, 2008 Messages 6,638 Location South Florida Dec 14, 2017 #21 Id do 7500 miles on synthetic if it were my car. Fram Ultra filter changed every other time.
M Merkava_4 Joined Jan 30, 2007 Messages 17,501 Location Clovis, CA Dec 14, 2017 #22 Don't do the spirited driving until the engine is up to thermostat opening temperature.
