Ford messed up the gapping on the OEM plugs and this is part of the problem with the Ecoboost shudder at 55-60mph. The spark plug gaps are all over the place from. 035 to. 046 on just one members engine.
At the time of publication, the average cost of concrete for a 400-square foot slab, the typical size for a two-car garage, ranges between $583 and $637 or between $1.46 and $1.59 per square foot. On average, contractors will put in about 13 hours of labor to finish a two-car concrete garage slab.
It is best to contact a contractor in your area for a realistic price estimate. Basic Cost Range ($2.50 to $5.50 per square foot) What You'll Get: 1  An eye-catching, economical upgrade to plain, gray concrete.2  Basic one-coat application of stain with sealer (which includes floor cleaning and masking prior to staining): At this price point, you are comparing against wood flooring ($8-$10 per square foot) and a range of ceramic and quarry tiles ($10-$12 per square foot).