V6 Malibu VS V6 Saturn

The Malibu V6 is a pretty old push rod design, but probably isn't design
stressed. This size engine only producing 170hp is pretty low, so my
opinion is the Malibu V6 should be good for 150k miles or more. My 98
has 60k and has no problems (i use Mobil 1 since the first oil change at
3k miles). I think the Malibu V6, though, is lacking quality control.
Seems the design has issues with intake manifold gaskets. Mine were
replaced at 38k due to leaking anti-freeze. Others I've asked with this
engine have seen similar findings. I think Chevy is moving away from
the push rod engine on some of their models, not sure about the 3.1L.
The best mpg I've seen on my car is 32, the worst 21. Mostly mixed
driving.

The Saturn V6 is the same design that SAAB uses (I think). I don't have
experience with that engine, but I do with the car company. I had a
Saturn SL2 in the early 90's. Put over 120k miles on the car. Only
problem I saw was the battery, it had to be replaced every two years!
Perhaps the heat of the engine was killing the battery? Used Mobil 1 on
this car from the first oil change. Never used a drop! Good car
company (better design than Chevy - my opinion, but still GM). I think
Saturn is over-priced (hey I'm cheap, that's why I purchased the Malibu)