New CX-30 engine break in mileage?
- Thread starter kkotcat
- Start date
- :
- Canada
In the owner's manual, I believe there is a very short section regarding engine break-in. All it says is that there is technically no engine break-in required, which makes sense with all the advancements in tech leading to more precise machining and better tolerances. This reduces the amount of wear metals that would make their way into the oil during the first oil change interval.
All that said, the manual does state that the car should not be "raced", meaning that you should not accelerate too aggressively. I took that to mean, keep it below 5k RPMs. It also states that the engine should not be run at the same RPM for a long period of time, like cruising on the highway. It should be driven normally, with varying RPMs. After the first 500 mi you should be good to go.
With my CX-9, I followed the manual's suggestions, and I also changed the engine oil a bit early at around 5k kms (3.1k mi).
All that said, the manual does state that the car should not be "raced", meaning that you should not accelerate too aggressively. I took that to mean, keep it below 5k RPMs. It also states that the engine should not be run at the same RPM for a long period of time, like cruising on the highway. It should be driven normally, with varying RPMs. After the first 500 mi you should be good to go.
With my CX-9, I followed the manual's suggestions, and I also changed the engine oil a bit early at around 5k kms (3.1k mi).
- :
- Canada
Yeah we have quite a few users here who have done early first oil changes. Most of them go 2-3k mi and then change the oil, but a few did it as early as 1k mi or sooner. Despite all the improvements in manufacturing, there always has to be some degree of initial wear, and many of us prefer to get rid of those trace amounts with an early oil change.
You can check out this used oil analysis thread. Some owners sent in samples of the oil from their first oil change to a lab for analysis and posted the analysis reports.
Personally, I'd do an early oil change on my next vehicle, probably at 2k kms or less if possible. The oil and filters are cheap enough.
You can check out this used oil analysis thread. Some owners sent in samples of the oil from their first oil change to a lab for analysis and posted the analysis reports.
Personally, I'd do an early oil change on my next vehicle, probably at 2k kms or less if possible. The oil and filters are cheap enough.
2
200955
I'm assuming you are from my time period, simply because you remember the older break in sequence - 500 to 1000 miles with high zinc oil then dump and fill with 10W30. True back then but not today. Take the new car off the lot and immediately drive it up to 80mph for six hours if you want. Who cares what the engine does - it's under warranty. Not your problem, you didn't build it.
As an example, what if you bought the car yesterday and had to go 1000 miles to a funeral today on a four lane freeway. Drive it like it's stolen and if it can't survive that no worries unless there's a warning sticker staring right at you that says "Do Not Surpass 90KPH for 500 Miles"
How is the vehicle you are driving, "not your responsibility?" Immature and irresponsible.
As we have mentioned, please give it 1-2 tanks of conservative driving first and see.
2
200955
Because it's not. What do you consider irresponsible? Going down a freeway at 45 mph for fear your engine might self destruct at 70 mph? And what's with the immature comment? Truth is if the engine going to grenade it usually happens in a very short time after you take possession. Unless otherwise instructed by the manufacturer you're free to drive the car as you see fit. As stated earlier, the manufacturer takes into account the "worse case scenario" for engine reliability especially going past the red line. They built it, they thoroughly tested it and they warranty it. There weren't any disclaimers on my new car not like the insurance companies policies have.
2
200955
So, like the third tank of fuel is miraculously going to fix everything?
Antoine
Administrator
Please keep threads civil and true to the original topic. Being confrontational will lead to being permately banned. This is an engine break-in question, not an excuse to call people out and argue.
Please keep threads friendly, informative and on topic.
Back to the topic, thank you.
Please keep threads friendly, informative and on topic.
Back to the topic, thank you.
I spoke with the service center this morning and told them that after a half tank I'm only getting 12 mpg. They told me this is fine because it's a turbo; so I showed them Mazda's statement of 20 city and 30 highway. They are going to look at it, but if it doesn't improve over a few tanks I'm going to raise hell. Anyone experience this exact same thing?
Thanks everyone.
Thanks everyone.
- :
- CX-5 Sport 16.5 6M
Are you getting that 12mpg from your dash readout? Or calculating with a tank fill up and odometer reading?
I work in automotive service at a GM dealer. My plan is to do an oil change at around 1000 miles, and another when I get to 5000 miles, then every 5000 afterwards. The question I've been wrestilng with is...what oil to use? Idemitsu? Pennz Ultra? Mobil-1 (my usual go-to)?
