Greetings Everyone,
I'm new to the Buick Grand National scene but not to the turbos or collecting cars for that matter. I recently picked up an 87 Grand National that has a little work done to it. The seller ( a local classic car retailer) claims it's putting down 400 hp.
Searching the forums there seems to be some debate on the type (synthetic vs. non) of oil you should run. The only thing that seems consistent is people adding ZDDP to their oil of choice. I'm curious as to what weight people are running and if one brand as shown better results over another with these engines. Are these engines prone to sheering oil?
I'm toying with the idea of running Shell Rotella T6 5W-40 full synthetic. I realize some people say synthetic is a waste with short oil change intervals but I'm after max protection for the engine. I figure I'll put maybe 3000 miles a year on the doing weekend cruises and the occasional trip to the 1/4 track.
I'm new to the Buick Grand National scene but not to the turbos or collecting cars for that matter. I recently picked up an 87 Grand National that has a little work done to it. The seller ( a local classic car retailer) claims it's putting down 400 hp.
Searching the forums there seems to be some debate on the type (synthetic vs. non) of oil you should run. The only thing that seems consistent is people adding ZDDP to their oil of choice. I'm curious as to what weight people are running and if one brand as shown better results over another with these engines. Are these engines prone to sheering oil?
I'm toying with the idea of running Shell Rotella T6 5W-40 full synthetic. I realize some people say synthetic is a waste with short oil change intervals but I'm after max protection for the engine. I figure I'll put maybe 3000 miles a year on the doing weekend cruises and the occasional trip to the 1/4 track.