Is there any benefit in buying the high mileage oil or am I just getting duped?
High mileage oils typically have additives to swell and soften seals in order to mitigate or prevent leaks. If you’re not leaking anything, don’t switch to high mileage, but if you do switch to high mileage, continue using it and don’t change back.
@Kai
I believe after 60K-90K, you should switch to keep your seals from leaking. I did not switch till it was already leaking and wish I switched just a tad before.
Dru said:
@Kai
I believe after 60K-90K, you should switch to keep your seals from leaking. I did not switch till it was already leaking and wish I switched just a tad before.
Yeah, catching it early is key. Once the seals start to harden or crack, the high mileage oil won’t be able to reverse the damage, only slow down further issues.
@Kai
That’s exactly what happened with mine. Had to replace a gasket, and now I’m sticking to high mileage to prevent any more surprises.
@Larkin
Good point! I’m in Texas, so it doesn’t get too cold. I didn’t even think about the viscosity difference until you mentioned it.
There is a difference in the additive–there are higher amounts of seal conditioners. Want way too much information about them? Watch this…
Zeek said:
There is a difference in the additive–there are higher amounts of seal conditioners. Want way too much information about them? Watch this…
I’d be interested in seeing that video. Can you share the link? I’m always trying to learn more about engine maintenance.
@Soren
Sure thing, I’ll dig up the link when I get home. It’s a bit technical, but super informative for anyone wanting to know the science behind the oils.