I had a 2006 GMC Canyon 4x4 that was powered by an I-5. I was taken aback, because I didn’t realize they made I-5 engines. I swore up and down it must be a V4, or an I-6.
Nope, it was inline 5 cylinder, 3.5L, 220 HP at 5600 RPM engine. The crazy thing is, around 70,000 miles, the engine got better - I gained 5 MPG after crossing the 70,000 mile mark. Never did understand that.
I think maybe those 2002-2010 or so GM straight engines used the same parts, in an inline they just cut a cylinder off? I think they made a straight 4 too. They were called atlas engines I think?
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