Not really DIY, but I had an opportunity to test drive a new Chevy Cruze diesel yesterday. It is a gutsy powerplant, but it takes a bit of adjusting to get used to the turbo kicking in. I felt its punch a couple seconds after pulling away from a light. There is power to spare even with the additional diesel weight. The car is quite nice, but the noisy diesel surprised me. I was expecting something more sophisticated like the VW TDI engine. Instead the clatter and rattle was quite apparent from the outside. Inside the car they have done a very good job of sound proofing so it is not too bad, except when you punch it or go uphill. To be fair we were comparing it to the very quiet Volt so our ears were sensitive to the noise. It will be interesting to see how this one sells. With a light foot mileage should be very good. I found on the highway it was getting over 50mpg.