I know this has probably been posted to some degree, but I'm curious what the consensus is on what oil is comparable to others, that one can typically find at WalMart?
i.e.
1) top - Castrol Edge gold = Mobil 1 Extended Performance = Pennzoil Platinum ULTRA
2) high-mid - Castrol Edge Black = Mobil 1 = Pennzoil Platinum = Valvoline Full Syn
etc. etc.
I like what I'm reading about Pennzoil Platinuminum ULTRA, but seeing as I haven't seen that stocked very often, I wonder if Castrol Edge Gold would be equal.
i.e.
1) top - Castrol Edge gold = Mobil 1 Extended Performance = Pennzoil Platinum ULTRA
2) high-mid - Castrol Edge Black = Mobil 1 = Pennzoil Platinum = Valvoline Full Syn
etc. etc.
I like what I'm reading about Pennzoil Platinuminum ULTRA, but seeing as I haven't seen that stocked very often, I wonder if Castrol Edge Gold would be equal.