Miller Auto Supply

04/17/2026

Go check out the Miller Ace Hardware grand opening event in Boonville!

02/25/2026

It’s Spring filter sale time at your 15 Miller Auto Supply Napa locations.
Come in and save 40% on Napa Gold Filters beginning March 1st thru 14th

02/23/2026

https://www.instagram.com/p/DUbC4OPgFt8/?igsh=bmVzZHQyaW55NDJw

01/12/2026

12/18/2025

The New Miller Ace Hardware is all lit up now!!!
Come by and be an Ace Rewards member get up to 25% until Xmas

12/08/2025

Warrenton $1000 dollar give away!

11/27/2025

Miller Auto Supply is grateful for the loyalty of our customers over the years and looks forward to continuing to serve them for many years to come. Happy Thanksgiving

11/26/2025

Sqan QR for our great Black Friday sale. If we don’t have it we can order an honor sale via special orders.

03/23/2023

Missing the good old days? If you could bring back one of these classic car features, which would you like to see return?

03/22/2023

TRICO Wiper Blades offer some of the best value for high-end performance wiper blades. All March long save $16 per pair on your choice of TRICO Force, Silicone Ceramic, and Titan Beam Wiper Blades.

03/18/2023

If you want a FREE NAPA Racing hat, you will have to act fast. Now at participating locations get a free #9 NAPA Racing Hat with a $25 purchase while supplies last.

03/17/2023

Sometimes you see green and still feel the need to be pinched. If you have a green ride, drop a photo in the comments below.

03/16/2023

Missing the good old days? If you could bring back one of these classic car features, which would you like to see return?

03/09/2023

Keep your engine running like new with Mobil 1. It provides exceptional wear protection, cleaning power, and overall performance that meet the industry’s toughest standards. Plus, you'll get your choice of drinkware, while supplies last, when you purchase five quarts.

03/07/2023

Keep your engine running like new with Mobil 1. It provides exceptional wear protection, cleaning power, and overall performance that meet the industry’s toughest standards. Plus, you'll get your choice of drinkware, while supplies last, when you purchase five quarts.

02/24/2023

You can’t miss with this deal. Get $15 off per pair of RainX Silicone AdvantEdge Wiper Blades through the month of February. The durable silicone blades have what it takes to keep your windshield clear season after season at a great price.

02/15/2023

It's the ideal time to replace your oil, air, and cabin air filters. We are offering $20 back on a Visa Prepaid Card with the purchase of three qualifying NAPA GOLD, NAPA Platinum, or Enviroshield filters.

01/24/2023

NAPA AAA Premium Batteries pack dependable power start after start. If you're looking for superior start power, high-reserve capacity and prime, maintenance free service, the AAA Premium Battery is the obvious choice.

01/17/2023

Be sure to take a quick check under the hood to make sure your new year stays on track. The serpentine belt keeps several vital components operational while you drive. If it breaks, you're going to be left stranded. Check for signs of cracking, squealing, and excessive wear, as well as a few other points outlined in this blog - https://knowhow.napaonline.com/serpentine-belt-wear-indicators/

01/11/2023

Get the home-field advantage no matter the weather with Rain-X Silicone AdvantEdge Wiper Blades. The durable silicone is made to withstand the harshest weather conditions season after season.