No, most of the Spider is a Miata but the engine is a 1.4T imported from Italy.
I emailed Mazda USA on synthetic oil for turbo engines
- Thread starter jadmt
- Start date
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- Canada
Probably because it's cheaper and easier to process conventional oil and synthetic blends. Those oils then become even cheaper to buy in bulk, which is what most dealerships, independent shops and quick lube places will use whenever they can get away with it.
I'd have no issue using conventional oil in my 2.5T, it just doesn't make sense to use it when the price difference is so narrow and I only do two oil changes a year.
7eregrine
The man, the myth, the legend
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- Land of Cleve
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- 2016.5 CX5
A lot of companies ask you to use synthetic. I sincerely doubt they say somewhere "Because the turbo runs cooler on synthetic". Happy to be proven wrong.
Regardless as it relates to this thread: do what Mazda tells you to do. LOL
N7turbo
2023 CX-5 2.5T
I can't agree with this logic when it comes to oil, a known commodity. We have independent test results, so we know how it stacks up, and there doesn't seem to be anything special about it.
Probably because the price difference is negligible and the benefits for synthetic are way up there. But, yeah, I can see some Mazda bean counters seeing the savings in pumping vast quantities of conventional oil in the Turbo engines versus synthetic, purely conjecture on my part.
with short oil change intervals like 5k or 7500mi, conventional vs synthetic just isn't going to matter as long as the oil is SM (already an obsolete spec) rated or newer. Current SP rated oils already provide much better performance than the oils these engines were initially designed around
7eregrine
The man, the myth, the legend
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- Land of Cleve
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- 2016.5 CX5
I don't mean using "Mazda oil". If they say dino is fine for your turbo, I believe that.
N7turbo
2023 CX-5 2.5T
Ok. I'm sure it's fine. But I want more than fine.
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- Pueblo county CO
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- CX-5 Sport 16.5 6M
I think if you read the statement carefully, it says the Mazda will get maximum performance from conventional oil. Then it references your local Mazda dealer. That doesn't preclude the fact that while syn oil doesn't improve performance it could result in longer engine and turbo life. If I recall early production cars with turbos, like Dodge, recommended full synthetic oil to prevent turbo bearing failure when the oil failed due to high heat, sometimes after engine shutdown.
They really just want people to visit their Mazda Service Provider and have them change their oil.
They really just want people to visit their Mazda Service Provider and have them change their oil.
N7turbo
2023 CX-5 2.5T
Which is funny because there are plenty of posts saying their dealership didn't use conventional oil at their service.
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- 2023 CX5 turbo
i don't think a lot of people who have to have their dealership even know what their dealership uses..I bet have the dealerships in the US don't realize the mazda branded 5w30 is in fact conventional..the crazy thing is if you cross the border to Canada and buy Mazda branded 5w30 oil it is in fact synthetic.....it makes on freaking sense.......
N7turbo
2023 CX-5 2.5T
Hmm, I've read that the 5-30 Mazda oil is made by Idemitsu and is synthetic. Why would U.S. and CAN be different? All the cars are shipped from Hiroshima with working motors full of oil. I guess they could fill them with different oil depending on the intended destination but I've never heard of that.
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- 2023 CX5 turbo
that is the 6 million dollar question...seems insane to say the least....want to see what a deer looks like when it gets blinded by car headlights.....go ask your dealership service writer why it is......
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- Canada
Most dealerships do not use "Mazda oil" unless you specify it. When you bring your car in for an oil and filter change, they'll use whatever bulk oil they have that meets the specifications in the manual, because that keeps costs down. Could be conventional, or it could be a synthetic blend.
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- W WA
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- 2024 CX-5 Premium
Different markets, different climate.
N7turbo
2023 CX-5 2.5T
Sure, but same engine. Different climates call for different viscosities, not completely different oils. It has to be more about regulation or something with corporate.
Most owners aren't like us on this forum. They just blindly take their car into the dealer and let them do whatever they do, without questioning what it is that they are actually using.
There's also the issue, documented here more than once, of dealers putting 0W20 oil into turbo equipped cars. Most owners are none the wiser. Most techs that do oil changes are at the bottom of the totem pole when it comes to proper training. Most of them are young low tenured, low experienced guys that have no clue. This is why I use indie shops for oil changes, where I bring my own Mazda filter, and where I can watch them do the work. I've also been burned in the past (many years ago) when the dealer took my car into the back, let it sit for 20 minutes, then brought it back out without having done the work, and charged me for it. I learned my lesson.
Not as hard as you think, with water-cooled center bearings. Most likely the shorter oil change interval negates most of the advantages synthetic oil has and Mazda's testing proved it. Not specifying synthetic oil also keeps life cycle costs below the BMW/Mercedes level. BMWs are easy to buy and hellish to maintain. I won't have that.
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- '23 CX-5 CE
Different climate Niagra Falls, NY vs Niagra Falls, Ontario CA?
