Octane ratings are posted on fuel dispensers. CAUTION: Follow the fuel recommendations in your vehicle owner's manual. If your vehicle requires premium 91 or higher octane fuel, use a premium grade of gasoline. The least amount that's necessary to prevent detonation (spark knock). On most vehicles, that would be regular unleaded 87 octane gasoline.
The basic pay for any member of the U.S. military is based on two factors, rank and time of service. For an Air Force E-4, pay begins at $1,947 a month, or $23,364 a year, for those with less than two years of service.
The typical US Air Force Crew Chief salary is $45,987. Crew Chief salaries at US Air Force can range from $24,216-$75,590. This estimate is based upon 44 US Air Force Crew Chief â¦ salary report(s) provided by employees or estimated based upon statistical methods. See all Crew Chief salaries to learn how this stacks up in the market.