Shop Press

Shop Press is the news and idea hub for everything related to working on cars and trucks, focusing on repair, technology, and wrenching lifestyle.

From the creative minds at:


Hot Off the Press

The pros (and more than a few cons) of chrome

My Shop Press colleague Lemmy and I have had an ongoing debate about chrome. Since I’m a lover of antique cars, particularly Tri-Five Chevys, you can guess that I’m a pretty big fan of chrome. I think it makes any car look luxurious and stylish. Lemmy, on the other...

PSA: Make sure your Loctite isn’t fake!

Loctite’s threadlocking compounds are used by automotive professionals everywhere to secure critical fasteners. Unfortunately, Loctite's popularity has resulted in a wave of counterfeit products that can look remarkably like the real deal. Everything from the bottle,...

TECHNICIAN CHALLENGE: Can you identify these dash lights? (VIDEO)

Description Think you know your dash lights? Shop Press contributors Keith, Miriam, Chris, and Greaser try their best to identify all kinds of lights, symbols, and indicators. Some are easy, others obscure, and a few are even fakes. How many can you identify?

Dash warning lights: feature or bug?

Warning lights are something we’re all familiar with—all too often, they’re the reason a customer steps into your shop. Mechanics of a certain age will remember a time when the phrase “idiot light” was used to describe a dash light. The derisive term referred to the...

PSA: Check that cabin air filter

Most of us know that we should change the filter in our home heating and air conditioning system monthly, but why? What does it do? The role of the filter is twofold. First, it traps dirt, dust, pet dander, pollen and other allergens and helps keep the air you’re...

Four not-so-obvious ways grease can come in handy

by | Aug 15, 2023

I like grease. You may or you may not, but as a very cheap staple of most shops, I’ve learned to use it in a few unconventional ways, which has made me like it more. Here are a few times plain ol’ grease is what you should reach for.

Vertically-oriented O-rings

Lubricating O-rings is certainly something I expect you all do. This makes installation easier and also non-destructive—dry metal catching an O-ring can kick off a leak moments after it’s installed. Nothing here is news to you, I am sure. Lubricating with the sealing substance is always a safe bet.

However, when confronted with a O-ring that is oriented vertically when in service, grease is the bee’s knees. The high surface tension of the grease is almost always enough to hold the ring in its groove without falling to the floor, allowing you to line up parts, start fasteners, and generally avoid fighting with the sealing item.

Do your homework on the O-ring material, of course. It may be that you need a silicone grease or something with a more exotic base than the dinosaur goop, but as long as the materials are compatible, grease serves as both an adhesive and a lubricant in this role. I’ve had especially good luck adding a dab of silicone-based grease on long, finicky water pump seals.

Installing a gasket

I kind of hate RTV silicone. I find it in places it doesn’t belong, it makes a mess, and most people are sloppy at applying it. But I do understand the temptation to grab it when gasketing something since it acts as a mild adhesive.

In a perfect world, most gaskets would be installed dry as the manufacturer often recommends. However, we all know a gasket that won’t lay flat or one that wants to fall usually gets a schmutz of something to hold it in place while we work. Especially when dealing with gaskets that seal oil, I prefer to eschew the RTV and use a dab or two of grease to hold things in place instead. Once oil hits it and washes it away, there is no goop or residue left like RTV can leave behind. (And no matter the color, RTV silicone is ugly.)

automotive red grease lubricant

Car grease has more uses than you think.

Cutting threads

A bit of grease can make capturing swarf from tapping a hole much simpler. Sometimes the chips from a thread-cutting operation might cause damage to the threads that have just been cut. In this case, some grease can help trap chips. A little in the flutes of your tap can be a lifesaver in a blind hole, especially if you don’t have a proper chip-clearing tap.

Holding small metal parts in place for assembly

If you have ever had occasion to have your fingers in a valve body, you know those little check balls roll wherever they like. A little dollop of grease is all it takes to keep them where you need them while you assemble.

I’ve used grease to hold small springs in place before, and it’s a godsend any time you happen to be working on older equipment with loose roller or needle bearings. Similarly, when I’ve had to fire a fastener into a blind hole while fighting gravity, a little bit of grease in the end of a socket usually hangs onto the fastener for long enough to get it started. Unlike adhesive (or RTV, which is admittedly tackier than most grease), it cleans up after installation with a quick spritz of your favorite solvent.

No matter if it’s a dab or a dollop, a squirt or a smear, sometimes a fingerful of grease is just the ticket.

The articles and other content contained on this site may contain links to third party websites. By clicking them, you consent to Dorman’s Website Use Agreement.

Related Articles

Shop Press Comment Policy

Participation in this forum is subject to Dorman’s Website Terms & Conditions. Please read our Comment Policy before commenting.

Notify of
1 Comment
Oldest Most Voted
Inline feedback
View all comments

Get Articles In Your Inbox

Subscribe to receive a monthly email summary of our latest Shop Press stories.

Shop Press

I agree to the above privacy statement and T&Cs

Thanks! You're now subscribed.