Oil change question

Got about 36k miles on a 2011 v6 4L, been using regular oil since I bought the truck brand new. Is it too late to switch to a Mobile1 full synthetic? Running wix filter. Any help is much appreciated! Thanks

 

I swapped mine over at 150k miles and have ~172k now and have had no issues, so I give u a go ahead. Picked up about .5-1 mpg also but the guy I bought it from was runnin 10-40 for some reason so that could be where that came from.

 

Thanks for the help!

 

36k is still brand new.

But you can switch any time.

 

I heard after a point it was bad to switch bc the one oil will help seal parts in engine and then changing oils to full syn will cause these seals to leak. Any truth to this, and this is the reason y I was asking. I looked over quite a few threads and never found exactly what I was looking for. Thanks

 

There are a lot of myths about synthetic.
Some were based in fact 30 years ago, but are no longer true.

Among them:

1 - Don't run synthetic during break-in, the oil is too slippery.
I remember when if you broke in an engine with any "detergent" oil the rings would not seat. Any engine is (and always has been) able to accept synthetic as soon as you get it home from the dealership. The engine is run on a dyno at the factory and the rings are seated before it goes on the truck.

2 - You can't go back to conventional
Never has been true. You can even mix conventional and synthetic, just treat the resulting mixture as if it is 100% conventional for oil change interval purposes.
They even sell "semi-synthetic" oils... but semi-synthetic really only means "semi-expensive"... you get some of the good things about synthetic, but you also get the bad things about conventional.

3 - Synthetic will cause oil leaks on a high mileage engine
Not totally true. Some have observed oil leaks on high mileage engines, but this is not because the molecules are smaller or the oil is more slippery.
If it leaks with synthetic, the leaks were already there, but blocked by sludge deposits from the conventional oil (and likely too-long oil change intervals).
The detergents in the synthetic oil are quite effective at gently cleaning sludge deposits... which means that it may uncover some existing leaks.

That's not going to be an issue at 36k unless the oil has never been changed.

 

That pretty much settles it, thanks. I've changed oil and filter every ~5k so it's time for number 7 at around 36,220ish. I just didn't want to hurt anything in the engine. Problem solved, problem staying solved.

 

bought my tacoma at 111,000 mi and put mobile1 -5w30 in it and at almost 121,000 now- runs fine and haven't noticed any seepage or leak.