I took advantage of the FAR Gumout Multi System Tuneup at Advance Auto a month ago. Vehicle is a 1994 Toyota Corolla with 170,000 miles. These engines have piston rings problems where the oil control rings gum up and the engines consume oil. In my experience, after using various cleaners such as MMO, Auto-RX, Rislone etc., the oil consumption will go from 1,000 miles per quart to about 2,000 miles per quart, and after about 20,0000 miles, the rings get gummed up again.
With the Gumout product, I added 1 ounce per quart of oil to the oil, so 4 ounces in the crankcase, 6 ounces I used through the PVC line with the engine running, and 6 ounces in the fuel tank. After 500 miles, the oil hasn't budged on the dipstick and it's black with only 2,000 miles total on this interval. Seems to be doing something. I can't really comment on whether the engine runs better since prior to this, I did a full Seafoam treatment and ran about a half gallon of water through the PCV ;line to try and decarbon the engine. It ran great before the Gumout but I wanted to try it in the oil to see of it would do anything for oil consumption and it has. I did not run any Seafoam in the oil, just 1 can through the PCV line.
On a side note, the oil filter on the car currently is a Purolator Premium Plus L14476 that has withstood all of the above and the car sat for almost a year with intermittent driving since I work from home. This fall I'll be taking it off with probably 3,000 miles, and it's had the above Seafoam, water, and Gumout run through the engine and 2 brutally cold winters. We shall see what the media looks like! I'll post pics.
With the Gumout product, I added 1 ounce per quart of oil to the oil, so 4 ounces in the crankcase, 6 ounces I used through the PVC line with the engine running, and 6 ounces in the fuel tank. After 500 miles, the oil hasn't budged on the dipstick and it's black with only 2,000 miles total on this interval. Seems to be doing something. I can't really comment on whether the engine runs better since prior to this, I did a full Seafoam treatment and ran about a half gallon of water through the PCV ;line to try and decarbon the engine. It ran great before the Gumout but I wanted to try it in the oil to see of it would do anything for oil consumption and it has. I did not run any Seafoam in the oil, just 1 can through the PCV line.
On a side note, the oil filter on the car currently is a Purolator Premium Plus L14476 that has withstood all of the above and the car sat for almost a year with intermittent driving since I work from home. This fall I'll be taking it off with probably 3,000 miles, and it's had the above Seafoam, water, and Gumout run through the engine and 2 brutally cold winters. We shall see what the media looks like! I'll post pics.
Last edited:
