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Callisto, I think I might win that challenge on personal vehicle oil and transmission fluid service, haha What matters is that we both win and our cars win too. Take care, Tom
There are multiple factors which determine the oil change intervals -- #1 The recommended interval in the manual by Mazda #2 Distance #3 Time and #4 the conditions which you use the vehicle - The interval reset can done by you or the dealer and its easy to use mileage and or time - In this case they likely bumped it one month because you may have told the service writer you are a city - stop / go driver --but regardless - I personally after 7 Mazdas have found that the manual has the outer limit of service which is often a calculation which keeps the " maintenance cost " projections low for new buyers who ask " How much does it cost to service per year ?" -- Well If you are in an urban environment and have doubts - Change the oil In 1/2 of the recommended mileage or about 3500-4000 miles - ( which I do ) or if its time and you have lower mileage --it generally accurate at 6 months as with a premium full synthetic oil - it should last that long just sitting with low mileage - If you drive in harsh stop and go - high heat or are towing- or driving it hard with lots of passengers --- Definity air on the side of caution 3500 miles and if you are going on a long trip get the oil changed regardless - oil is inexpensive--engines are not - These are high compression engines which need to be driven to operate well -- try to get it out on the fwy at least once a week and go for the Italian tune up by getting the rpms up in the 4-5 K rpm area gently in and out of that area ( fully warmed up of course ) --it wont hurt the vehicle and will help keep the injectors clean and reduce carbon build up - and keep critical components lubricated instead of being bone dry on long intervals between starts - as well even if its a NA ( non turbo ) - If you can afford it use top tier premium fuel-91-93 octane - which for high compression engines is paramount to avoid pre-detonation -- as well you will get a power increase --- The owners manual even states in the very difficult to locate recesses that if towing with the non-turbo use PREMIUM fuel --hmmm wonder why - take care of this vehicle - they will last and last if you do -- best
Last edited by retread888; Jul 12, 2025 at 02:03 AM.
There are multiple factors which determine the oil change intervals
Well this is a better than usual response from you but there is still a few incorrect and inaccurate info in it? But I know you are trying
Its Saturday and nothing better to do then float around and respond on random thread.... lol
Still IMHO this thread and the response at this point ...
If countries or people get BUTT hurt or thinned skinned and don't realize that on a forum, like a vehcle forum that is worldwide that there are many universal phrases used that can mean different things and should not be or represent insulting if used as an example I did and will continue to use on various forum mostly this one!
BTW I have relatives that are Canadian citizens in the higher health divisions
Oh I am not attention seeker, I am just trying to find out whether if I don't get my car serviced within the 5 months as indicated by the dealership, will I have problems with my warranty. No one has actually answered that, just droned on about how the more often you change your oil the better it is for your car, which I already knew and agree with! Maybe another here is the attention seeker? There is a difference between recommended and mandated !
6 months is still indicated in Mazda's on online owner's manual for a schedule 2 oil change.
They would be hard pressed to hold you to 5 months, if you had a printed copy of it and they had no evidence of notifying owners of a change if there was one.
That said, the dealer can do whatever they want, if I were you, I'd ask another Mazda dealer and see if they say 5 months, 6 months.
It also wouldn't hurt to email Mazda Corporate asking the question and keeping a copy of the sent mail and any reply you may get.
I would point out you can manually adjust the service interval in the settings area of infotainment.
I do this all the time. When I change my oil, I set a 6 month 5000 mile reminder. After 6 months, I'm typically at about 2500 miles. If that's the case, I leave the mileage reminder where it is but usually reset the time reminder by 2 months at which time I'll change the oil. I like the original 6 month reminder to assess where I'm at.
6 months is still indicated in Mazda's on online owner's manual for a schedule 2 oil change.
They would be hard pressed to hold you to 5 months, if you had a printed copy of it and they had no evidence of notifying owners of a change if there was one.
That said, the dealer can do whatever they want, if I were you, I'd ask another Mazda dealer and see if they say 5 months, 6 months.
It also wouldn't hurt to email Mazda Corporate asking the question and keeping a copy of the sent mail and any reply you may get.
Thanks! I did write to Mazda Canada but got a bit of a strange reply as they indicated that as you say, it does say 6 months for Canada in the manual , but they said 12 months was the maximum interval ! I have written back to them to clarify, but in the meantime I am happy to go 6 months. Not wishing to beat Callistos dead horse again, but I will say what Mazda says
