Quote:
Originally Posted by Meat Head
Here is my dilemma........My drive to work consists mainly of 50-55mph. In 5th gear I'm running around 2200-2500rpms. If I drop it into 4th, I'm at 2700-3000 (I have heard this is the hardest rpm range on our engines so I try to avoid this range for extended periods)..
|
Great post. I read in the below (65 MPH) post that "VarioCam changeover occurs between 2200-2500 RPM so you don't want to cruise in that range for fear of constantly readjusting cam timing, causing increased wear to the cam chain wear pads."
I have not heard that cruising at 2700-3000 RPMs is hard on your engine. I cruise on the freeway in that range most of the time.
There are so many opinions out there that I too am at a loss as to what is best for engine longevity.
http://986forum.com/forums/general-discussions/43308-65-mph.html