SirRobyn0
Full Access Member
- Joined
- Dec 6, 2019
- Posts
- 6,755
- Reaction score
- 11,402
- Location
- In the woods in Western Washington
- First Name
- Rob
- Truck Year
- 1984
- Truck Model
- C20
- Engine Size
- 305
It can clean off nasty intake valve deposits. But to really clean out one good. Use some B12 chemtool or seafoam and "feed it the onions" as Derick on vice Grip garage says as you pour it down the throat of the carb .
I'm a fan of A/C Delco X-66A, for true carbon and deposit removal, but it'll take anything off and you got to be careful it's harsh stuff and will mess up your paint. For truly stubborn deposits a cup of water dripped down the carb on a warm fast idle. I think the main thing I find interesting about MMO is not so much the cleaning ability, when added to gas, but also the lubricating ability. Lets face it, a few ounces in 20 gallons really ain't much. I use to have a pinging problem in my Jeep and I'd swear MMO reduced the pinging. Like being interested in hearing gas mileage reports I enjoy hearing about peoples experiences with additives. I'm pretty firm that most don't work, or work well MMO... I'm not sure. Will try in the truck, I should blow through at least two tanks by Friday night and report back after that. Getting off on a tangent for a moment one of the few additives I like for engine oil is MMO, in that case it is for cleaning. The other one is Hyperlube in worn out engines with oil control issues.