Quote:
Originally Posted by akkando
Put in 5w-40 Pennzoil 1k miles ago. Don't notice any difference, including warm up time. Figured North California is warm enough to be safe and I drive the car hard enough that more protection isn't a bad idea. Don't want to go on a back road run revving it out with degraded 0w-30. They used to put 5w-30 when I first got the car..
|
Okay, can I test my understanding of the whole Xw-XX in this?
The Xw gives an indication of the viscosity when cold (there's a set temperature and the viscosity is equivalent to...).
The -XX gives an indication of the viscosity when hot (as with the Xw...)
Yes?