I thought the 04 monte and regal have a hybrid series II/III. The 04s have a l32 bottom end with a Gen III blower on it whereas the 05 have a l32 bottom to top. The l32's call for 5w-30 and l67s call for 10w-30...Anyone clarify this?
Lets make it really simple.........
5W30 in winter unless you live in Scotsdale or San Diego(if you are in Alaska or a colder part of Canada a 0W30 would be prudent...oil flow at cold temps is CRITICAL)
10W30 in summer
I apologize for the thread jack. Does anyone here have any real hands on proof that Rotella syn is more effective than our normal syn oils? Not looking for empirical rocket scientist data but just someone with actual experience with the pros and cons of Rotella.
Btw Billy, hows the cold treating you nowadays?
With many advances in Oil technologies, its always imparative to keep your prognosis of your own oil changes, at bay. It seems that the statment, "Change your oil every 3,000 miles!" is still very alive now because of better petroleums. I figured my average oil-change interval is around 1,400 to 2000 miles....even with technology. Yes, its a very expensive option, but clean quality oil is better than dirty quality oil!
Advances in filter media and design, has altered this as well. Unfortunately, we can only afford to do what we can. Do, what you must do, to support and keep your engine running clean and strong!