If you get oil hot enough it will solidify. As a child I remember an uncle who was owed $15, the debtor heated $15 worth of pennies in a pan of oil till it turned into a clear amber colored brick. The brick was used as a door stop in his house.
A long time ago I had a Mazda 626 1980s coupe. You have to adjust the valve clearances on it exactly like the xs650. When I took the valve cover off everything was full of grit.'SuperTech' 20W-50 from Wal-Mart,
Not sure where this came from, but I like it. Are these all synthetics?
Andy Granatelli, it was.I can kind of picture it, but can't put my finger on it. What about the STP screwdriver test?
... Hey, I recall you mentioned something about at 2000miles, the oil that you've changed isn't necessarily that old because you've added almost a quart over that time...
Thinking back, I took a trip with Dr. Peabody in the "Way back machine", to 1977. Then, it was my save money transportation, I recall that if the oil was getting dirty, and if it was really hot outside, I noticed problems downshifting, finding neutral and neutral to 1st was really crunchy. That could be exacerbated by the old style shifting fork and shifting drum configuration. Since I installed the 81 trans and the 79 drum and forks, it has been shifting like buttah! It may also be more slippery with the ZDDP additive that I use religiously. The North Georgia weather is very mild now, and at 2K miles on the Castrol 10-60, it's still smooth as buttah!Nope, that t'weren't me.
But, I HAVE experienced clutch release problems when the oil got 1,000 miles on it...