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.
How much does an O-4 Major in the Air Force get paid? A Major is a field officer in the United States Air Force at DoD paygrade O-4. A Major receives a monthly basic pay salary starting at $4,603 per month, with raises up to $7,685 per month once they have served for over 40 years.