Oil weight in 1993 Mustang GT?
Ok im getting ready to change my oil in my 93 it has 107.xxx on it i have 3 brand new quarts of 15w-40 synthetic oil I think that might be a little heavy? can i mix that oil say with 10w-40 syntheic oil to make it lighter..?? I really want to use it being that it is so exspensive...or should i use all 15w-40 ...thanks....
DD 98 GMC suburban 04 Trailblazer,other toy 06 300 SRT8
Wifes toys, 91 Z28 350 tpi supercharged,89 Iroc-z 350 tpi.
1993 GT Convertible-SOLD
1998 GT SOLD 1990 GT sold
87 GT Vert.On3 turbo making 14 psi...PRO-M maf,Trickflow TW 170cc heads,TF street heat intake,70mm TB,stock cam,1.6 roller rockers,Snow performance stage 2 meth kit,42# injectors,340 lph fuel pump,tunning with Moates QH,AOD,lentech VB.electric OD,3000 stall.3.55's