Ford F-150 V8 Gets Better Fuel Economy Than Mid-Size I-4 GMC Canyon in Real World TestIn a rather shocking highway fuel economy test, this V8-powered Ford F-150 Tremor was notably more efficient than a four-cylinder GMC pickup. As an example, generally speaking, a V8-powered full-size pickup is going to return worse fuel economy than a smaller, mid-size, four-cylinder powered hauler, as we’ve seen time and time again. Heck, the whole reason automakers have largely ditched the V8 in favor of smaller displacement, forced induction powerplants is to slash emissions and meet rising fuel economy standards. However, in this recent real-world test, a Ford F-150 V8 proved that particular notion wrong. When those numbers are tabulated, the Ford F-150 Tremor managed 22.7 mpg compared to the Canyon’s 20.8 – nearly a two mpg difference.