Trump has signed an executive order expanding red-dyed diesel use through December 2026. But tax deferrals, state restrictions and diesel supply shortages could limit the savings for truckers and pickup owners.
LS1 crankshaft runout is checked at the No. 3 center main journal with a dial indicator. Learn how to measure crankshaft straightness, identify excessive runout, and determine whether an LS crank may be bent before assembling the short block.