Twisted

I'm trying to decide whether or not to try to lower my oil consumption by using some product to clean my piston rings and ring lands. Once I did a Marvel Mystery Oil piston-soak on an old racebike that had been ridden so gently that everything was carboned up, and it worked. The oil consumption nearly disappeared. Then, another time, I did the same thing on another bike (that I think was abused), and it made the oil consumption worse. My questions are:

1. Do these engines have a propensity for carboned-up rings and lands?
2. Has anyone been successful using products like Seafoam and MMO to lower oil consumption?

Thanks again.

PRO50SC

How much oil are you using?

Twisted

Exactly a quart per 1k.

grabbem88

no leaks?....chk pcv?....

PRO50SC

How many miles on the motor? Does it smoke from the t-pipes?

Twisted

Actually, there is a leak from somewhere down low; it just doesn't seem like that could account for such oil loss. It's either my rear main seal, or my rear oil drain bolt leaking. Haven't been under there in a while. At any rate, it just leaves a drip or two in the garage every night. The thing is, I think it is burning most of it for two reasons: 1. There is soot in my tailpipes, and 2. My thermactor crossover pipe was clogged with soot/carbon. What do you think?

Twisted

There are 106k miles on it, and if I set a video camera behind the car, and gun it to save Jesus, I get a tiny puff from the t-pipes.

Twisted

Oh, and I just replaced the PCV with a new Motorsport one. The oil usage is the same as with the Purolator (guess) one that was in there. By the way, thanks for the replies folks.

grabbem88

might be a little rich,and washes some oil away with the burn.....it might drip more when running?.

Twisted

Could be. I may pull my plugs and have a look at them tomorrow. When I last looked at them, they were all pretty clean. I'm tempted to break out my compression gauge while I have the plugs out, but this probably won't tell me much about my oil usage.