Plan for the testing fee.

Air Care gasoline inspections.

Air Care’s published fees are $35 for 1982-and-newer vehicles and $20 for 1981-and-older vehicles. Its published VIN verification fee is $25. Eligibility, collector status and test circumstances can change which service applies.

Payment.

The operator lists cash, checks and credit cards, with a 2% transaction fee on credit card purchases. Confirm the current total directly before testing.

Diesel fees vary.

Licensed diesel stations set their own charges. Ask about the fee for your vehicle’s duty class, appointment requirements and accepted payment methods. An unavailable price is not a free test.

Reviewed November 6, 2026. Sources: Air Care cost & hours and Colorado DMV diesel requirements.