Quote:
What is considered high mileage for a switch to a full synthetic? I have wanted to for some time but haven't. Now my Frontier has almost 75K miles on it. Is this too high to switch to a synthetic, and which brand is most favored?
|
Not at all, you can change to synthetic any time you want. I wrote a post about the synthetic here:
Is it ok to switch back and forth between regular and synthetic motor oil?
Mobil 1 is probably the most used, we do more Mobil 1 oil changes at my shop than all the other brands (Eneos, AmsOil, Royal Purple, Valvoline) combine.