OIL VISCOSITY- MIX AND MAKE OWN WEIGHT?
Posted: Mon Jul 06, 2009 4:01 pm
by KEVSTER
Ok, question..Lets use my Truck as example. Ram hemi, takes 7 qts of 5w-20 wt oil, if I use 4 qts of 5w-30 wt and 3 qts of 5w-20 wt will I get 5w-25 wt? I have always wondered about this..
Posted: Mon Jul 06, 2009 6:06 pm
by 2008PatherfinderS
No. Oil viscosity is not a linear scale. For example 0W20 doesn't mean the it has no viscosity. Multi viscosity oil such as a 10w30 is not a blend of 10 weight oil and 30 weight oil (wouldn't that then be 20w oil by your logic?)
Multi Viscosity oil takes on different properties at different temperatures.