Switching from synthetic oil back to regular?

Jenns04

New member
RE: Re: RE: LOCKERS

Is it harmful to switch from using fully synthetic oil back to using regular dino oil? I hear conflicting reports. Thanks! Jenn
 

RE: what next

Nope, you can even mix them.........or buy them mixed ("blend"). :wink:
 
RE: Re: RE: I feel the need...

if your motor has over 75K miles, I would not even consider synthetic, perhaps a blend, but straight sinthetic allows blow by in older motors.
 

judge09 said:
Whats the deal with the "specially formulated" oil for high mileage engines?

From what I read, it's supposed to have an "agent" to keep valve seals and other seals pliable.
 
RE: sway bar

You should be fine switching from synthetic back to organic oil. I don't believe in doing the opposite in an older vehicle but some would disagree. I doubt you'll hear much arguement for switching to organic oil though.
 
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