SLOB and MMO combo...

[Doc8404]

Forgive me since this is kind of a repost, or call it a combination of several threads I've either started or received advice.

My 92 Galant has a slight tick (lifter for sure) so I've been adding MMO (6oz bottles) to top her off as she burns oil for about the past 1k miles...I also added a bottle of SLOB about 300 miles ago.
Currently running SuperTech 5w30 conventional and boy is that oil black as can be at this point.
Should i run it for another 500-1000 or change now? current oil has about 2k on it.

 

[Doc8404]

also, someone recommended a high mileage oil...but as far as i know, the seals are fine...would it be a waste?

 

[Greggy_D]

I'd change it with some more ST (keep it cheap). I know oil color doesn't mean everything, but after 2000 miles it looks like you need a change.

If you want to go a little more pricey, change it with MaxLife instead.

 

[Doc8404]

probably right...i've been topping her off evertime with 6 oz of MMO....

 

[Craftsman]

The MMO is probably doing some cleaning of the internals which may be causing the oil to go black...

You might want to try a bit of Seafoam in the oil for a couple of hundred miles to see if you can get some more stuff out of there and then change the oil out.

 

[dwendt44]

SuperTech has a highmileage oil, IIRC.

 

[Doc8404]

thanks guys...think i'll run the Seafoam in the crankcase for about 500 and then change with SuperTech High Mileage 5w30 conventional.