My Tacoma will be due for new oil in the differential this fall. The current fill is Valvoline Durablend 80w90. No complaints, except that it does seem a bit thin at high temperatures.
Like most of you, I like poking around on Web sites and looking at oil specs. The Super Tech oil bottles in our local Walmart all have "WPP" on the bottom. According to what I've read here, that means the stuff comes from Warren Performance Products, which is part of Warren Distribution.
So this morning I visited Warren's site and looked at the specs for their MAG1 gear oils. I'm assuming that the 75w90 MAG1 synthetic blend is the same stuff as the Super Tech 75w90 synthetic blend that has WPP stamped on the bottom of the bottle. According to Warren's site, the 40-degree (C, of course) viscosity of this oil is 118.6 and the 100-degree viscosity is 16.45.
According to Valvoline's site, the corresponding numbers for Durablend 80w90 are 136 and 14.8. So the Super Tech/Warren 75w90 seems to be slightly thinner than the Durablend at cool temperatures and bit thicker at high temperatures.
Two questions:
Am I safe in assuming that Super Tech synthetic blend gear oil = MAG1 synthetic blend gear oil?
More to the point, has anyone here used the Super Tech 75w90 synthetic blend? Any problems?
I'm not worried about having a super-duper additive package that lets me leave the oil in the rear end for 50 or 60 thousand miles. I don't mind changing it every couple of years. The Toyota diff has a drain plug, so it's not like I have to remove a cover and mess around with a gasket. I don't tow anything or haul heavy loads. The truck hauls my butt to work, brings me home, and occasionally carries maybe 300 pounds of stuff from Home Depot or Lowe's when we have a yard project to do.
Thanks.
Like most of you, I like poking around on Web sites and looking at oil specs. The Super Tech oil bottles in our local Walmart all have "WPP" on the bottom. According to what I've read here, that means the stuff comes from Warren Performance Products, which is part of Warren Distribution.
So this morning I visited Warren's site and looked at the specs for their MAG1 gear oils. I'm assuming that the 75w90 MAG1 synthetic blend is the same stuff as the Super Tech 75w90 synthetic blend that has WPP stamped on the bottom of the bottle. According to Warren's site, the 40-degree (C, of course) viscosity of this oil is 118.6 and the 100-degree viscosity is 16.45.
According to Valvoline's site, the corresponding numbers for Durablend 80w90 are 136 and 14.8. So the Super Tech/Warren 75w90 seems to be slightly thinner than the Durablend at cool temperatures and bit thicker at high temperatures.
Two questions:
Am I safe in assuming that Super Tech synthetic blend gear oil = MAG1 synthetic blend gear oil?
More to the point, has anyone here used the Super Tech 75w90 synthetic blend? Any problems?
I'm not worried about having a super-duper additive package that lets me leave the oil in the rear end for 50 or 60 thousand miles. I don't mind changing it every couple of years. The Toyota diff has a drain plug, so it's not like I have to remove a cover and mess around with a gasket. I don't tow anything or haul heavy loads. The truck hauls my butt to work, brings me home, and occasionally carries maybe 300 pounds of stuff from Home Depot or Lowe's when we have a yard project to do.
Thanks.
