A decision has been made to change out 1,000 gallons of lube oil in a vessel's main propulsion unit. Which of the following statements is true regarding this decision?

Question

Accepted Answer

In addition to the increase in the neutralization number, the viscosity of oil has also increased.

Answer

The neutralization number has decreased below minimum levels.

Answer

The sole use of the increase in the neutralization number need only be the basis for this decision.

Answer

A small rise in the neutralization number over several years of use has prompted this decision.

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