I have a high mileage (198K) Toyota 4WD. I would like to run Auto-RX for the engine, transmission (manual), and the rear differential (the front and center differential is part of the manual transaxle). For the engine, I have been running with Chevron Supreme 10W-30 although I have used Castrol GTX High Mileage 10W-30 and Valvoline MaxLife 10W-30 in the past. The engine has two leaks: one near the engine front (I have not been able to figure out precisely which seal is leaking), and the other near the distributor (either distributor O-ring or distributor internal seal: I will replace the O-ring and see what happens, if no change, I will replace the inner seal). Also, there is some oil burning. There appears to be no engine slugde; all leaking oil is honey-colored. And I change the oil usually every 2000 miles.
The transmission and rear diff are on their original factory fill, have _no_ leaks. Their oil was checked _but not changed_ 5K miles ago or so; the mechanic said that these oil were clean.
So, since the engine leaks , I want to do the Auto-RX oil seal and oil burning program (can both of these be done together) engine program, but can I do the other programs at the _same_ time (engine oil seal/burning + transmission + rear differential)? Or should I just stick with one at a time to make maintenance easier? Intuitively, there doesn't appear to be any mechanical problem or interference with doing all 3 cleansings simultaneously but your feedback would be appreciated.
Thanks Daryl and Frank. I'll print out the applications and look them over for duplications is service intervals; it would much easier to drain and refill the stages in unison.
BTW, should one keep to the precise schedule of intervals, or can one "fudge" an interval by lengthening it perhaps depending upon one's circumstances at the time of needed service. My guess would be that the service intervals are not written in stone but allow some flexibility (perhaps +/- some miles).
(BTW, should one keep to the precise schedule of intervals, or can one "fudge" an interval by lengthening it perhaps depending upon one's circumstances at the time of needed service. My guess would be that the service intervals are not written in stone but allow some flexibility (perhaps +/- some miles).
datsa,
There is + and - in the applaction my advice is 300 to 500 miles I would stick to this for the best results.
