Honda mechanic notices shocking difference after comparing cars that had oil changes at every 5k miles vs every 10k miles
Published on Dec 15, 2025 at 4:21 PM (UTC+4)
by Jack Marsh
Last updated on Dec 15, 2025 at 4:21 PM (UTC+4)
Edited by
Emma Matthews
Keeping your car slick and clean is quite a tedious job, there’s no denying that. But to prove why it’s necessary, this Honda mechanic showcases why you need oil changes every 5,000 miles.
If you’re not much of a greasemonkey and spend limited time under the hood of your car, you might be unconsciously ignoring some quite important things.
Specifically, your engine needs to drink oil as much as you need water, not just gas.
But if you’re not regularly making oil changes, this Honda mechanic showcases the disastrous state your engine can get into.
VISIT SBX CARS – View live supercar auctions powered by Supercar Blondie
How often should you get an oil change?
Oil changes might be becoming a less-frequent thing of late, as even the most stubborn of combustion faithfuls are now making the switch to EVs.
While most EVs don’t need an oil change – unless you’re the owner of this Tesla model – diesel and gas cars still need constant maintenance.
Not only will it keep your engine internals working well, like the pistons and bearings, but you can also have mental reassurance that your engine is healthy for every trip.
But how often does it need changing? Well, previously it was claimed that you should get oil changes every 3,000 miles, but experts recently said that this is outdated with modern engines.

Instead, one Honda mechanic has now revealed that it should be more like every 5,000 miles, but certainly not as far as 10,000 miles like many people do.
Honda mechanic shows the difference frequent oil changes make
Taking to Facebook, mechanic ‘Honda Master Tech’ posted a short reel that showcased the difference between two engines that came in for an oil change, one after 5,000 miles, and another after 10,000.
The 10,000-mile engine was visibly dirtier, with sludge beginning to pool.
The brown staining around the valves causes added friction to the pistons, making them sticky and slow. It also traps heat, which any mechanic can tell you is a bad idea.

Some people in the comments argued that this is still quite superstitious, as a number of factors can interfere with engine quality.
Still, what’s the harm in oil changes every 5,000 miles, if you know it can keep your engine squeaky clean?
DISCOVER SBX CARS: The global premium car auction platform powered by Supercar Blondie
Jack Marsh is a journalist who started his media career after graduating with a degree in Journalism from the University of Chester. As an avid supercar and racing enthusiast, he has a passion for everything from Formula 1 to NASCAR. Whether it's highlighting the intricacies of McLaren’s anti-dive suspension revelations or recognizing celebrities’ multi-million-dollar rides, he has a keen eye for the faster things in life.