Maintenance at 60K - Suggestions? - Mazda 6 Forums : Mazda 6 Forum / Mazda Atenza Forum
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post #1 of 13 (permalink) Old 07-19-2018, 10:44 AM Thread Starter
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Maintenance at 60K - Suggestions?

I've turned 60K on my odometer this week and I've noticed that I've lost just the slightest spring in my step. The car has been religiously maintained, has used Mobil 1 0W-20 green label (advanced fuel economy) motor oil it's entire life at 7500mi intervals and has always been refueled with top tier gas (Mobil or Chevron 89 octane). I have changed the air filter at 12,000mi intervals using Wix. For past cars, I've used Gumout 2-in-1 fuel injector cleaner every 10,000mi. However, I remember a couple of people recommending NOT to use any kind of additive on the SkyActiv engine.


Interested to hear from some others on what kind of throttle body or engine maintenance I can do to try and clean things up.
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post #2 of 13 (permalink) Old 07-19-2018, 11:44 AM
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It's never a bad thing to check your TB, but I doubt there's much clogged up at this point (at least there wasn't with mine at the time). Due to check it again soon.

If you've noticed a slight drop in performance, it might be worth checking your plugs. For $20 and a half hour of your time, you could be back to normal (I certainly noticed a difference when I changed mine at 80k). Word of warning though, don't get the super cheap ones anywhere - a few extra $$ is worth it. Part numbers and whatnot are all here: https://forum.mazda6club.com/engine-...eplacment.html

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post #3 of 13 (permalink) Old 07-19-2018, 12:21 PM
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Nature of the DI engine is that there isnt much any additives can do to the valves. One option is to take it to a reputed BMW shop and ask if they do walnut blasting on other makes. Why BMW shop ? Because they've been blasting walnut shells to clean the valves for ages. Option two which is inexpensive and DIY is to seafoam through the throttle body, just be careful that you don't hydrolock it.

Out of curiosity, what makes you think it has dropped in performance ?
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post #4 of 13 (permalink) Old 07-19-2018, 03:10 PM Thread Starter
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Quote:
Originally Posted by MilR View Post
Out of curiosity, what makes you think it has dropped in performance ?

Just seems like acceleration is a bit laggard. I was thinking spark plugs as well, as 100,000mi is a long way to go for such a wearable item. I'll more than likely do a plug change next weekend and see how that goes after 500mi. Thanks for the help.
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post #5 of 13 (permalink) Old 07-19-2018, 05:12 PM
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Yea Spark Plugs be an easy process of elimination.

I've ran 2 12oz cans of the "Gumout Multi-System Tune-up" in mine no issues.

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post #6 of 13 (permalink) Old 07-19-2018, 07:43 PM
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...I was thinking spark plugs as well, as 100,000mi is a long way to go for such a wearable item...
Aside from how long the spark plugs actually last (by way of spark performance) the ungawdly sound they make when breaking loose (from an aluminum cylinder head) and the concomitant tearing of the aluminum threads 😐 for ME makes me want to do plugs at 50,000 mi (or at least to check them and to install new plug gaskets for their reinstallation). For me (and YMMV and you may not agree) I reinstall with a spit of engine oil on the threads and go to only 3/4's spec'd torque.

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post #7 of 13 (permalink) Old 07-19-2018, 10:52 PM Thread Starter
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Originally Posted by Cdn17Sport6MT View Post
Aside from how long the spark plugs actually last (by way of spark performance) the ungawdly sound they make when breaking loose (from an aluminum cylinder head) and the concomitant tearing of the aluminum threads 😐 for ME makes me want to do plugs at 50,000 mi (or at least to check them and to install new plug gaskets for their reinstallation). For me (and YMMV and you may not agree) I reinstall with a spit of engine oil on the threads and go to only 3/4's spec'd torque.
I've always had the practice of taking a thin film of motor oil to coat the threads before torqueing the plugs back in, but good point. Always a bit of an adventure taking plugs out of an aluminum head. Patience above all else goes a long way.
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post #8 of 13 (permalink) Old 07-19-2018, 11:23 PM
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Michael95350: do you use penetrating oil for sparkplug removal? You 'kinda suggest that you do - when you say patience is the order of the day...?

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post #9 of 13 (permalink) Old 07-19-2018, 11:57 PM
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After reading the 1st post and before reading the 2nd post, I was going to say "Plugs".

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post #10 of 13 (permalink) Old 07-20-2018, 09:09 AM Thread Starter
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Originally Posted by Cdn17Sport6MT View Post
Michael95350: do you use penetrating oil for sparkplug removal? You 'kinda suggest that you do - when you say patience is the order of the day...?
Yes, but I also take zero chances when it comes to aluminum heads.
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