> My understanding is that it is not the same Bosch fuel pump used in the TDI.
Precisely what make and model is probably less significant than:
What lubricates the pump?
> The Cruze Diesel indeed does not have a spare tire, similar to the Cruze Eco. Instead, there's an air pump and a canister of TPMS-safe sealant ...
The lack of a spare is not a deal-killer. The lack of a place to put a full-size purchased spare would be, and it sounds like putting it in the trunk would reduce the already modest Cruze sedan storage space (wagon needed, and that is a deal killer for me).
We already have tire pumps all both our vehicles. About 1/3 of our flats involve leaks too fast for that to provide limp-home. And we're almost always at least 20 minutes from the nearest service. Spare is not an option.
It would also be nice if the TPMS could be instructed to monitor a fifth tire. I suspect not.
I won't be a fanboy and claim that the Cruze Diesel is for everyone, because I know it's not. It may just be that it does not meet your requirements, and that's fine. I know I won't be buying one, because it doesn't make financial sense. It wouldn't be an upgrade over my Eco, which already gets 50-55mpg highway and 39-44 mpg during my daily commute with a 29-33mph average speed. If it came in a wagon and a manual transmission, then we could talk.
I sent an e-mail to one of my contacts regarding fuel pump lubrication. I'll let you know as soon as I find out.
The Cruze is in reality a respectably sized car. While it is advertised as a compact, the interior space actually puts it in the smaller midsize category. It really depends on what your needs are. I would agree that a spare tire would take up a considerable amount of your trunk space.
We had a guy who had to use this system recently. Had a flat with a sizeable puncture that produced an audible hiss. The instructions on the canister mentioned that once you fill it up, you need to drive a little while, so he got in his car, drove half a mile, got back out, and the tire had stopped losing air. This was done in sub-freezing weather.
GM does offer a 5 year, 100,000 mile roadside assistance, which includes flat tires, lock-outs, and a towing service if necessary. It is an inconvenience, but at least you aren't left stranded indefinitely.