Yeah, the GM 2.8l V6. Great engine, I had two S10 Blazers with that engine that were still going strong after 300K miles. I drove both of them really hard too. I know a lot of other people that had them in their S10s that also got a really long life out of their 2.8ls. They got great gas mileage too, I got 25 mpg on the hwy, around 20 around town. They werent the most powerful engines, but they did just fine with a 5 speed. The key for the 2.8l is to keep the oil changed every 3000 miles, if you do that, they'll treat you right.
Mine never leaked vey much btw, a few minor leaks, but nothing out for the ordinary. Especially not for engines with that many miles on them.
GM still uses a variation of them today. The 3.4l V6 is nothing but a stroked 2.8l.