Underpass Body Shop

04/02/2026

We will be closed Good Friday after all.
See you on Tuesday April 7th.

12/23/2025

HOLIDAY HOURS:
Closing at noon Wednesday 12/24/25
Closed Thursday (Christmas Day) & Friday

Closing at noon Wednesday 12/31/25
Closed New Year’s Day & the day after (1/2/26)

We WILL be here Monday, Tuesday (regular hours)
and Wednesday until noon
12/29 to 12/31/25

WISHING YOU ALL A BLESSED CHRISTMAS & A WONDERFUL NEW YEAR!

08/22/2025

The shop will be closed Monday, August 25th. We have to make a trip to Minneapolis. Will be open Tuesday for regular business ( hours: 8-12/1-4pm).
Thanks for your understanding!
😊

03/20/2025

11/28/2024

Understanding Engine Oil Viscosities: A Visual Guide

If you've ever wondered about the different types of engine oil and what those strange numbers and letters mean, you're not alone. Engine oil is a vital component of your vehicle, and choosing the right type is crucial for its performance and longevity. In this blog post, we'll break down the basics of engine oil viscosities using a visual guide.

What is Engine Oil Viscosity?

Viscosity refers to the thickness or thinness of a liquid. In the context of engine oil, it's how easily the oil flows at different temperatures. This is important because your engine experiences a wide range of temperatures, from freezing cold on a winter morning to extremely hot under heavy load.

The Numbers in Engine Oil Grades

Engine oil grades are typically expressed as two numbers separated by a "W," such as 5W-30 or 10W-40. Let's break down what these numbers mean:
* The First Number (Before the W): This number indicates the oil's cold-temperature performance. A lower number means the oil flows more easily in cold weather, allowing for quicker lubrication and easier starting.
* The Second Number (After the W): This number represents the oil's high-temperature performance. A higher number means the oil can withstand higher temperatures without breaking down, providing better protection for your engine under heavy load.

The Visual Guide

The image you provided illustrates the concept of viscosity in a clear and concise way. It shows five different engine oil grades: 5W-30, 5W-40, 10W-40, 15W-40, and 20W-50. As you can see, the oil with the lower first number (5W-30) flows more easily at colder temperatures, while the oil with the higher second number (20W-50) maintains its thickness at higher temperatures.

Choosing the Right Engine Oil

The best engine oil for your vehicle will depend on several factors, including:
* Climate: If you live in an area with extreme cold or heat, you'll need to choose an oil that can handle those conditions.
* Driving Conditions: If you frequently drive in stop-and-go traffic or tow heavy loads, you'll need an oil that can withstand high temperatures and prevent oil breakdown.
* Vehicle Manufacturer's Recommendations: Always consult your vehicle's owner's manual for the recommended oil type and viscosity.
By understanding engine oil viscosities and following the recommendations of your vehicle's manufacturer, you can ensure that your engine is properly lubricated and protected, extending its lifespan and improving its performance.

11/08/2024

Car Door Anatomy: A Breakdown of What Makes Up Your Car's Door

Have you ever wondered what's hiding behind your car door panel? If you're like most people, you probably haven't given it much thought. But if you're interested in learning a bit more about your car, or if you're planning on doing some DIY work on your vehicle, it's helpful to understand the different components that make up a car door.

Key components of a car door:

* Door panel: This is the part of the door that you see and interact with. It typically consists of an inner and outer panel, with insulation and soundproofing materials in between.
* Window: This is the glass portion of the door that allows you to see outside and ventilate the car. It can be manual or power-operated.
* Door lock and latches: These mechanisms secure the door when it's closed. They can be operated manually or electronically.
* Door hinges: These are the metal joints that connect the door to the car body. They allow the door to open and close smoothly.
* Door seal and weatherstrip: These components create a seal around the door to prevent water and air from entering the car.
* Power window motor and regulator: These components control the movement of the power windows.
* Power door lock actuator: This component controls the operation of the power door locks.
* Door handle: This is the part of the door that you use to open it. It can be an interior handle or an exterior handle.
* Security alarm connector: This connector is used to connect the car door to the vehicle's security system.

Why is it important to know about car door parts?

Understanding the different components that make up a car door can be helpful for a number of reasons. For example, if you're planning on doing some DIY work on your car, such as replacing a broken window regulator or installing a new speaker system, it's important to know how the door is constructed. Additionally, knowing about the different parts of a car door can help you troubleshoot problems and identify potential issues.

Conclusion

The next time you get into your car, take a moment to appreciate the engineering that went into designing and building your car door. It's a complex piece of machinery that plays an important role in keeping you safe and comfortable while you're driving.

10/30/2024

🤣 Very Scary Halloween pumpkins!!