Synthetic oil

My 2000 Nissan Frontier 4 WD has 98K miles. Could or should I convert at this stage to synthetic? My mechanic says no need to. ???

BTW, I live in Phoenix where the temps are horrendous in summer. Steve in Phoenix

It’s not going hurt anything. Keep in mind though running synthetic oil doesn’t mean the oil change intervals are any different. I recommend Pennzoil Platinum, it uses a Group IV base, has a strong additive pack, and isn’t terribly expensive for a synthetic.

There’s no need to, however if you feel you’d prefer to there’s also no reason not to.

Others feel differently, but I agree with Fodaddy that oil change schedules should not be changed when going to synthetic. The goal, after all, it to extend the length of the engine, not to extend the length of the oil.