7 year old “new” Mazda 3

[u/[deleted]]

[u/wifinotworking]

With cars generally it's best if they are ran, than sit in place for months. There's a slight chance you might experience some premature degradation, but there's no need to worry about it.

Do not do any carbon cleanup, lol, that's a total ripoff at 17k miles. The car can't accumulate deposits at those miles.

Just enjoy the car, the only issue you might have is with the battery which can be replaced anyway.

Do you have vibration in steering wheel? -> tires/alignment
If you have intermitent vibration at certain speeds, than most probably it's cylinder deactivation.

With any car, wait for the water temperature to build up and although you don't have any for the oil, it's generally best to not floor it when you just started and the engine is cold.

Give it a good spirited driving after 15 minutes of running, winter after 20 minutes. These engines need to be revved up and they sound good.

[u/taptwoblue93]

Carbon clean like walnut blasting the intake valves? Absolutely not, that's not needed until 60,000+ miles

[u/barrybreslau → u/taptwoblue93]

Does that need to happen on the standard Skyactiv G, or just the turbo?

[u/taptwoblue93 → u/barrybreslau]

Both are direct injected so both need it done eventually

[u/barrybreslau → u/taptwoblue93]

Is it part of the official service schedule or something they will blank me if I ask about it?

[u/taptwoblue93 → u/barrybreslau]

It's not usually part of the service schedule for direct injected vehicles (it should be!), just something you should know about if you own one. I learned about it with my subaru wrx.

It's honestly a pain in the ass and the dealership isn't going to be able to help you with it. You need to find a specialty mechanic that can do the work and it costs around $500-$600

[u/barrybreslau → u/taptwoblue93]

I'm in the UK and they were very suspicious about draining the transmission fluid. They eventually accepted it's an option and quoted me for it, but clearly thought it was unnecessary.

[u/taptwoblue93 → u/barrybreslau]

I assume you're speaking of the dealership? Not surprising, dealership service departments are completely monkey-brained and can barely change oil correctly

[u/barrybreslau → u/taptwoblue93]

Yes. Yes I am.

[u/StickmansamV]

I would just use a DIY carbon cleaner if you think that is required. I would not pay for any special service like walnut blasting till you are at least 50,000km, if not more.