With VVT the camshaft timing changes the true compression ratio. The static CR can be what ever you want it to be- the bigger the cam, the more static CR you NEED because the true CR drops with the early/ late valve timing of a huge cam. Unfortunately, the driver comfort of a big cam- and the...
RangerMike, your diesel ran because of the carbon build-up in the cylinders which was preheated by the diesel fuel operation before the gas got there. You will find out soon enough (unfortunately) the damage that "dry" gasoline does to a diesel injection system. :(
So, will a diesel engine...
No. Gasoline requires a spark to start the process, although a very hot spot in a cylinder can cause pre-ignition (but still requires the spark to get the ball rolling to create the hot spot).
OK, as my experience isn't good enough for you, perhaps this paper is:
www.uiweb.uidaho.edu/bioenergy/BiodieselEd/publication/03.pdf
The use of the term "lean" in discussing diesels is almost a misnomer, as diesels do not have a true stoichiometric point as their little cousins, the gassers...
Ok, consider it done, I'll not discuss anything diesel with someone who thinks they can run "lean". Have a nice weekend.
BTW, EGR TPs are gone already.
Chase, my deepest apologies if you thought I was assaulting you in any way, shape, or form. I am too new here and didn't know your credentials, my apologies. But after 35+ years of working on cars, I still have to disagree with your tests in a real world platform. Oh my, I just looked again...
I don't care what your graph shows, really, anyone can make a graph to represent anything. Use a vacuum gauge- or even a scanner, on a properly running engine and get back to me.
There is a reason EGR valves were introduced on vehicle engines besides the blending of a neutral gas. The...
The reason the 0W20 is more expensive is that the base stocks it's made out of are of a substantially higher quality. Use the 0W20 and do NOT pay attention to anyone telling you to use the 3 month, 3,000 mile oil change interval- it's bunk on any car built after 1996.
Actually, the pumping loss is most extreme at this engine speed in a lightly loaded cruise mode- it's ALL about throttle angle- so if both were at WOT up hill the loss would be insignificant. If you were to take a vacuum gauge and run it at idle then at 2,000, I think you will see what I mean...