QUESTIONS AND ANSWERS | 2026 UPDATE | 100% CORRECT
Q: If the crankshaft journals are shiny and smooth, what does this indicate?
Answer - A: Lubrication failure was not the root cause
Q: On a typical engine, a 20% leakdown rate indicates what? Answer - A: The
engine is wearing out
Q: During the oil drain process, the oil changes from clear to dark or dark to
clear. What does this indicate? Answer - A: New oil has been added on top of
previously dirty oil
Q: During a leakdown test, what worn part is indicated by air escaping through
the oil filler opening? Answer - A: Cylinder or rings
Q: Fuel labeled as E85 is not gasoline. Honda engines are designed and
certified to run on... Answer - A: Gasoline with 10% ethanol
Q: During a compression test, how long should you operate the starter?
Answer - A: Until the compression gauge stops moving
Q: What is the purpose of a choke? Answer - A: To make the air-fuel mixture
richer during cold start