Purchase two cans of Sea Foam (16 oz), two feet of 3/8″ tube, a small funnel that will fit the tube, and a new 3/8″ clamp to replace the single-use one from the factory at the vac line.
^^Yes, the warning label came upside-down from the factory…
Crankcase– As a pre service cleaner for old oil residue, sticky rings or valve train noise, pour 1½ ounces of Sea Foam Motor Treatment into the engine oil crankcase for EACH quart of oil capacity, including filter. For the R, I used 9 ounces. Drive a MINIMUM of 30 minutes/miles, MAXIMUM 100 miles, and then do your oil change service – Lube, Oil & Filter (LOF). This begins the process of safely/slowly re-liquefying the old oil residue so contaminants may flow and be filtered. This also makes your old oil dirtier, quickly, so a LOF service is necessary when the oil gets dirty. Great for Turbocharged & Supercharged applications where oils deteriorate so quickly due to heat, and leave those residues that NEED CLEANING.
Fuel System– Use 1 ounce Sea Foam Motor Treatment per gallon of gasoline. Can mix up to 2 oz. per gallon of gasoline if necessary. Mixing at less than 2/3 oz. per gallon will impair the effectiveness of Sea Foam. I used the remaining 7 ounces when I was below a half tank.
Vacuum system– This was the most challenging part of the process. I used the tube connected to the vac intake below the OTE pipe. First remove the two screws holding the OTE pipe to the engine so you have some pipe movement. Then remove the two screws holding the engine cover. Pull slightly forward and move to the left to remove. The vac line with the single use clamp is right there, centered on the engine. Remove the clamp and pull the vac line. Attach the 3/8″ line (a little difficult, but it will fit)
With warm engine running, SLOWLY induce 5-1/2 ounces into the vacuum system. The liquid will be sucked right into the engine. Turn ignition off. Restart engine after 5 minutes. Be sure exhaust is well ventilated. Fumes will be extreme for a short time. I restarted 15 minutes later and they are not kidding- the smoke the car puts out is crazy.
When driving the car over the next day or two, there is a lingering odor that disappears. But performance improvement is palpable. Any R with some mileage on it deserves this process.
I hope this info is clear and helps others in taking care of their ride. ‘Scuse the pics taken at night w/ poor light.
Thanks to rushin_max for pointing out where to induce to the vac system, and everyone else in the R forum that has made me a little smarter in taking care of my car.
Best- Scott