Question

1. a vehicle placard calls for 35 psi front and 33 psi rear. the tires are currently at 28 psi all around. what should you do and why?

Explanation:

Inflate tires to specified PSI: front tires need 7 PSI added to reach 35 PSI, rear tires need 5 PSI added to reach 33 PSI. Following the placard's recommended pressure ensures optimal tire performance, fuel efficiency, handling, and extends tire lifespan, while underinflation increases wear, reduces fuel economy, and impairs vehicle control.

Answer:

You should inflate the front tires to 35 PSI (adding 7 PSI to the current 28 PSI) and the rear tires to 33 PSI (adding 5 PSI to the current 28 PSI). This is because the vehicle manufacturer's specified tire pressures are engineered to ensure safe handling, optimal fuel efficiency, proper tire wear, and overall vehicle performance; operating tires below the recommended pressure increases the risk of tire damage, reduced fuel economy, and compromised driving control.