Is it ok to add a little 20w50 to existing five quarts of 5w30 in the sump?
My oil pressure was a little low in Dodge 4.7....so I added 1/2 quart of Valvoline Maxlife 20w50 (then added the other half to Gmc 5.7).
GL
P.s. pressure is slighty up now
My oil pressure was a little low in Dodge 4.7....so I added 1/2 quart of Valvoline Maxlife 20w50 (then added the other half to Gmc 5.7).
GL
P.s. pressure is slighty up now