Steve,
I have read quite a few papers on the subject and came to the conclusion
Amsoil, Redline and Mobil may have the best synthetic oils on the market. I
am using Mobil 1. I can find it easily and at a reasonable price.
Please check the available 20-50 synthetic oils and their specs below:
Brand VI Flash Pour %ash %zinc
20W-50
AMSOIL 136 482 -38 <.5 ---
Castrol GTX 122 440 -15 .85 .12
Exxon High Performance 119 419 -13 .70 .11
Havoline Formula 3 125 465 -30 1.0 ---
Kendall GT-1 129 390 -25 1.0 .16
Pennzoil GT Perf. 120 460 -10 .9 ---
Quaker State Dlx. 155 430 -25 .9 ---
Red Line 150 503 -49 --- ---
Shell Truck Guard 130 450 -15 1.0 .15
Spectro Golden 4 174 440 -35 --- .15
Spectro Golden M.G. 174 440 -35 --- .13
Unocal 121 432 -11 .74 .12
Valvoline All Climate 125 430 -10 1.0 .11
Valvoline Turbo 140 440 -10 .99 .13
Valvoline Race 140 425 -10 1.2 .20
Valvoline Synthetic 146 465 -40 <1.5 .12
The oil study these figures come from is on my website (under General Car
Links).
Jacques Le Clainche in San Diego
http://www.leclainche.com/
Steve wrote:
Does anybody have a preferred synthetic oil? I looking for synthetic 20W50
for use in my midget.
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