SLANT 6 a GAS GUZZLER?

I was running stock size tire ...just a bit heavier..6 ply I think....compared the distances with our car because we thought that as well...didn't notice any discrepancies..we played with it to see why it was good..no idea. I think it was just one of those fluke vehicles..I have heard of them in the past..however, the engine blew up at 175 which was premature in my opinion....