Supertech syn oil consumption.

[gregoron]

Check your PCV valve and use OEM or Motorcraft oil filters.

As for oil, you may just want to go with name brand 30 weight conventional oil that burns clean since you're burning it anyway. Just do more frequent OCI's (3-5k miles).

Mazda RX rotary engines inject oil in the rotary and most owners use conventional oil that burns at lower temps and leaves very little residues to gum up the plugs.

 

[KitaCam]

Originally Posted By: 6lbsoft
My 03 Crown Vic with 144k miles and no sludge in it regularly burned a quart every 4-5k miles regardless of Conventional or synthetic oils used. I'm 4k into my OCI using Supertech syn 5w20 and I've gone through 2.5 quarts. No oil leaks detected. Anyone else had this issue with this oil?


Originally Posted By: Rolla07
Go back to what you used before..


Yes....it's been said MANY times....but yes it should be said again...it ain't broke but we still try to fix it...there's no problem, but we look for a solution anyway...

 

[6lbsoft]

Originally Posted By: Merkava_4
That's a very smart move. That conventional high mileage 5w30 should stop the consumption and also quiet down the engine a lot.

Engine has always been a smooth runner. I did notice less noise in the morning (probably just my imagination though lol. But the oil burning smell is practically nonexistant! No more Supertech for this car...