This is a good post. ^^^ Givin the production numbers and the actual physical confirmed issues which is less then 1% of 1% these are both good models and engines.

 

Turbos are pretty popular these days. Most brands have one or more engines with a turbo.
Lack of maintenance is likely the reason for failure.
One trick with turbos many fail to adhere to is letting them cool down before shut off.
It's suggested to wait and let the engine idle for a minute before turning the engine off.
This allows the turbo to cool down and avoid or reduce 'coking' the shafts and bearings inside.

My 2¢

 

Dennis that was years ago and mostly has to do with running the boost levels up 10-18+ psi for more than a couple of minutes and raising all the operating temperatures. The older Turbocharged engine had less then efficient oil drain back and many model did not have a run on cool down engine shut off system so the oil would cook inside the turbochargers oil line if you shut the engine off before a short none boosted running time. MAZDA has ended that problem about 5-7 years ago with production Turbocharged and most assuredly the Skyactiv engines.
Much of the internet information comes from people that for better description abuse their engine without placement of safeguards or consideration to cause and effect.

You need to get about a decade forward with your information .. LOL


If you drive a Turbocharged engine normally nonaggressive frequently or NONE abusive you would not need to be concerned with a Turbochargers reliability.

 

I'm confused! Was there a typo?

 

Thanks. I've test driven non turbo and only cx9 etc which has a turbo (liked it more because of the smoother and quieter ride -. not so much for the extra power). Will be test driving a turbo CX5 soon. But again, I'm leaning towards Non Turbo because I've to fill the gas less often and there seems to be less issues with them when compared to Turbos, going by user experiences in different forums.

 

Yup the missing word NONE

 

We own a non-turbo and I find the power adequate, but sometimes when merging onto the interstate I wish it had a bit more power. On the other hand, I am very happy about the city and highway MPG numbers of the non-turbo. If I were in the market again, I would just test-drive them back to back and decide then. There was no turbo version available when we bought the car in 2018.

 

It's good that Mazda fixed those problems in earlier units. Still, treating the turbo with respect is a good idea. They are expensive and repairs are as well.
Then too, owners of other vehicles read this board and they may have a less reliable vehicle. With at least two MFGs using 1.5 Liter motors with turbo pulling
around a ~4000 lb vehicle, those turbos are working a bit harder than Mazda units. That puts a lot more stress on those turbos and their oiling and cooling systems.

 

I know you mean well but am sorry Dennis ..... dude... LOL pleeeeez try to learn about a topic a little more before posting...
LOL
A Turbocharger is not Stressed; it spins by the velocity created from the exhaust and the boost is control by valves which is either preset and manually, controlled through solenoids or controlled through the ECU programing which control valves limiting the boost level. Also, sensors have a direct influence on boost levels and maximum boost levels in OEM form. Back in the day.... Buick V-6 Turbocharged engine had a preset boost control valve and a boost lag on acceleration your grandmother could beat on foot. But a few of us even back then found that simply using a carburetor choke cable and by-passing the OEM waste gate you could achieve high boost levels and the engine would still survive and as well the Turbochargers. I might mention oil coking was not even an issue yet. The Turbochargers had a very crude oiling system yet most of the failures were due to the weight of the reciprocating components.
The oil supply it lubrication is coming from the oil pump of the engine and is run through the engine as the rest of the engine oil is.
Most Turbochargers that fail are mostly because of poor maintenance upkeep.
Turbochargers get a back review mostly from people that really don't understand how they work and start modifying the engines and boost levels carelessly and then post on various forum's all their troubles. LOL
A lot of us made BUCKs on Turbo Timers in dozens of variations based on all those fears operating a Turbocharger about a decade ago. I made boost valve to prevent the PCV vale from bleeding off boost. It was called the Boost Lock Valve. The reality is common since usage unfortunately that is seldom the case when many start wildly modding a Supercharged or Turbocharged factory engine.

The MAZDA Turbocharged engine is very well engineered and tested long before it was marketed.

Now what do I know really about Turbochargers.... well not enough as I would like. I am continually learning, but I do my own porting on stock and modified Turbo housings as well build BWDs offering them on a couple platforms and in over 10 years now not one warranty issue? LOL

 

​​​​​​​Now that's funny right there.