Twinpilot001
New member
Rebuilding a 1994 2.3 HO - in 1994 grand am- after noticing so many with oiling problems & overheating problems?/ im curious as to what oils were using? standard multi-vis?? or Full Synthetic?? Ive noticed many lower end failures (GM info) have been caused by coolany=t leaking into oil & then giving a non lube to oil pumps on these engines. Pump siezes up =no oil to engine & bearing failures! Im planning on after break in - 2000 miles - using only mobil 1 full syn oil. Ive used it before in my toyota carolla & now over 250,000. -no problems ever! stuffs just slicker-than conventional oils! Whats the general consesus of the group?? Thanx.