Here is the latest UOA on the 2006 Tundra. For those of you that follow all my threads on my vehicles, I have switched all of them to the appropriate viscosity of Amsoil signature series. In this vehicle, 5W-30 is used. I am also performing change intervals at 1 year or 10,000 miles in all four of my vehicles. The only reason I changed it at 8,849 miles is the weather is turning cold, and I wanted to change the oil before it got much colder.
Virgin TAN on this oil is about 4.2. Also - note that the previous UOA on 8/6/13 at 112,559 miles is on the SAME oil as the current UOA, although I did have to add 0.75 quarts at the 5,500 mile mark.
Based on this result and the results on my other three vehicles, I am pretty confident that Amsoil signature series will work fine in all four vehicles at 1 year, 10K mile intervals.
Comments?
Virgin TAN on this oil is about 4.2. Also - note that the previous UOA on 8/6/13 at 112,559 miles is on the SAME oil as the current UOA, although I did have to add 0.75 quarts at the 5,500 mile mark.
Based on this result and the results on my other three vehicles, I am pretty confident that Amsoil signature series will work fine in all four vehicles at 1 year, 10K mile intervals.
Comments?