Hey guys, i got my Motor Guard today and I was going to install it until I thought of this. Currently I have in the crankcase mostly 5W-30 SuperSyn but also have a quart of Amsoil s2k in there. I know that once I install this filter I don't have to really drain the oil for a long time (20,000 miles). My dilemma is this:
A) Leave the Mobil 1 5W-30 / s2k 0W-30 mix in the crankcase and continue topping off with s2k-0W-30 untill all the oil will be eventually replaced.
B) DUMP all the Mobil 1/s2k mix oil thats in there now (900 miles old) and just put in 5 fresh quarts of Amsoil s2k.
P.S. after adding about a quart of s2k, my engine got a tiny bit quieter at startup, so that's enticing me to reap the full benefits of s2k by switching completly over.
A) Leave the Mobil 1 5W-30 / s2k 0W-30 mix in the crankcase and continue topping off with s2k-0W-30 untill all the oil will be eventually replaced.
B) DUMP all the Mobil 1/s2k mix oil thats in there now (900 miles old) and just put in 5 fresh quarts of Amsoil s2k.
P.S. after adding about a quart of s2k, my engine got a tiny bit quieter at startup, so that's enticing me to reap the full benefits of s2k by switching completly over.