Originally Posted by Wolf359
Originally Posted by SirTanon
Originally Posted by Wolf359
Originally Posted by SirTanon
When I had my 2003 Sable LS with the Duratec 3.0, I ran a 5000 mile OCI with a quart of MMO in the crankcase in place of a quart of oil. To make sure that the oil wasn't too thin from the MMO, I upped the oil weight a tad to offset it - 10w40 plus the MMO, instead of the normal 5w30. It came out DARK at the end. Definitely did some cleaning.
Seafoam? No way I would put that in my oil.
How many miles did you get out of it? Never did any of that stuff and got over 200k with a 2001 Taurus with the Duratec. Got rid of it when the torque converter went. Engine was still fine. Used mostly 5w20 but occasionally 5w30 when it was on sale. Did between 5-8k oil changes on synthetic blend.
I sold the car at 186,000 miles, still running great with no engine or trans issues. The MMO seemed to do a good job of light cleaning, and did not seem to do any harm. Then again, I didn't really romp on the engine while the MMO was in.. the car was my daily driver commuter, and saw about 90% highway driving betwee 70 and 75 MPH.
The trick is that you replace no more than 20% of your oil volume with MMO.. which in the Duratec 3.0 meant out of the (approximately) 5 quart fill, using no more than 1 qt MMO. Also, IMHO, compensating for the slight thinning by upping the viscosity of the rest of the motor oil just a bit is a good idea, since MMO is quite light (approx. 5 weight).
Not sure what you mean by romp. I did drive mine hard, that was the nice thing about the Duratec, always had nice pickup so I'd get into it getting onto the highway or pulling away from a toll booth to reach speed quickly. Just saying that all the things you did may have been pointless. Got way more miles than you and never had any issues with the engine either.
Romp meaning flooring it, beating on it, etc.. Yes, it had the power, and yes, there were times I gave it a little goose to pass or get out of someone's way, but never really thrashed it.
As far as whether it was pointless or not, I never did it out of necessity.. I did it once mostly out of curiosity after reading another post on here about its potential for cleaning. I bought the car used, after all.. It seemed to do something in terms of cleaning, but it's not like the car really ran any differently afterwards.