CMF Junior Member
Join Date: Aug 2011
Location: SE Massachusetts
Re: How reliable is the 3.1 engine
My old Pontiac GP has the 3.1 V6 and my son now uses it every day. Last I heard, it had >140,000 miles. We did have one engine repair at around 60,000 miles, can't recall what it was exactly but it wasn't a head gasket.
Of course, all this is under the theory that the Chevy and Pontiac engines are the same.
2011 Malibu LS 2.4L A6
Gold Mist Metallic
2013 Equinox LS 2.4L A6