I took my two year old "rebuilt" injectors to the Bosch shop to get tested. I noticed a very slight drop in mileage last year, and well now I know why. The pop pressure is fine across all 6, and they won't leak down, but the spray pattern is so so at best. They spray heavy and don't atomize the fuel nearly as well as they should. They hooked up another MB injector that they had just rebuilt to show me the difference, and yep it was a lot better. The guy who tested them said they are not really bad enough to rebuild, but not that great either. He said I should run them for another year and run a lot of cleaners through, to see if that doesn't improve them. If they don't clear up by the fall I'm going to have this local shop do them.

I still regret replacing the originals, they were probably better than these.

__________________
1999 SL500
1969 280SE
2023 Ram 1500
2007 Tiara 3200