I was researching some of the oils that I have used, comparing them to some that I am thinking of going with and found the following:
oil Visc at 40C Visc at 100C
Valvoline 10w30 70.8 10.5
Delo 15w40 116 15.6
Rotella T 15w40 100 14.4
Rotella Syn 5w40 88.8 14.6
I usually use 10w30 in winter, 15w40 in summer...but was thinking of using the Rotella Synthetic this winter. To my untrained eye though, the Rotella 5w40 looks thicker at 40C than the Valvoline 10w30.
Those in the know, please help me understand. I tried looking at the visc chart, but that didn't help.
thanks,
Matt
[ August 30, 2002, 10:30 AM: Message edited by: matt cook ]