Mazda CX-5

**travajante** · November 24th, 2017 02:59 PM

Originally Posted by btdthat

Trying to decide between CX5 AWD Gas or Turbo Diesel. I test drove the 2.5L gas and liked it but I heard the diesel drives even better especially on highways, stronger more responsive engine. But I am worried of reports online that this turbo diesel is sensitive to the quality of diesel fuel. So I worry of long term maintenance issues given the inconsistent quality of diesel fuel among gas stations in M. Manila. To CX5 diesel owners I would appreciate if you can share your experience, is this an issue? Any regrets?

If your trips are short & slow, go petrol, sir.

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**btdthat** · November 24th, 2017 05:51 PM

Why is that? Generally Metro Manila driving short daily trips and I do not drive fast. But 2 to 3 times a year will take long trip like Bicol or Baguio.

**travajante** · November 24th, 2017 06:35 PM

Originally Posted by btdthat

Why is that? Generally Metro Manila driving short daily trips and I do not drive fast. But 2 to 3 times a year will take long trip like Bicol or Baguio.

Let's skip the math on price tag differences & look into long term performance & maintenance. Car manufacturers these days have their hands tied by pollution control regulations. Aside from EGRs & direct injection, new diesel engines now require cleaner fuel & are equipped w/ an extra maintenance-demanding filter....the Diesel Particulate Filter. To maintain performance, they go thru regeneration cycles. Conditions for passive regeneration can only be met when floor exhaust temps & speed requirements are hit....usually on freeway cruising. If conditions aren't there, regeneration will be done actively by the ECU to increase exhaust temps to burn the particulate build up...this can affect FC & add more trips to the dealership. You'll have 1 more maintenance item to periodically regen, replace & think about.
Read more about DPFs in general here...this is an off-road article, but explains DPFs well...
What to do when a diesel particulate filter needs to be burned off and you're offroad... | Practical Motoring
Again, I'm speaking generally here...
Even the mighty diesel LandCruiser200 has its share of things to look after...
Landcruiser 2 Series Diesel V8 IHI Turbo Problems
The petrol may not be as "torquey" but if trips are short & slow, I'd opt this over the diesel....Drive more, worry less.[emoji4]

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**btdthat** · November 24th, 2017 07:34 PM

Have been doing some reading on the care and use of turbo diesels. Been driving petrol cars for decades so was rather surprised that with turbo diesel this needs much more attention, like idling for 5 minutes before engine off to cool down the turbo, using only high quality synthetic oil, more frequent oil changes, not revving up until engine is warm enough, etc. Plus the generally high complexity of the turbo engine vs. naturally aspirated. Its almost like the benefit of the turbo diesel on more powerful engine performance and better FC is offset by these special needs. The CX5 diesel is P300T more but aside from superior engine it also has the power tail gate and lane assist w/c the AWD gas does not have. But have to say I am leaning towards the CX5 AWD gas as I am now worried on long term maintenance cost of turbo diesel past warranty period. I tend to keep and use cars forever like my current car is a Mazda 3 2.0L 2015, so long term maintenance cost is important.

**travajante** · November 24th, 2017 07:41 PM

Originally Posted by btdthat

Have been doing some reading on the care and use of turbo diesels. Been driving petrol cars for decades so was rather surprised that with turbo diesel this needs much more attention, like idling for 5 minutes before engine off to cool down the turbo, using only high quality synthetic oil, more frequent oil changes, not revving up until engine is warm enough, etc. Plus the generally high complexity of the turbo engine vs. naturally aspirated. Its almost like the benefit of the turbo diesel on more powerful engine performance and better FC is offset by these special needs. The CX5 diesel is P300T more but aside from superior engine it also has the power tail gate and lane assist w/c the AWD gas does not have. But have to say I am leaning towards the CX5 AWD gas as I am now worried on long term maintenance cost of turbo diesel past warranty period. I tend to keep and use cars forever like my current car is a Mazda 3 2.0L 2015, so long term maintenance cost is important.

Ahhh...grind-to-the-ground car owners...dying breed we are.[emoji4]
Both are very good variants....
The new diesels just prefer long trips out in the wide open more.[emoji4]

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**btdthat** · November 25th, 2017 12:20 AM

Mistyped my current car is Mazda 3 2.0L 2005. And still going. Even with the incoming CX5 I plan to still continue to use.

**travajante** · November 25th, 2017 01:10 AM

Originally Posted by btdthat

Mistyped my current car is Mazda 3 2.0L 2005. And still going. Even with the incoming CX5 I plan to still continue to use.

Good experience breeds loyalty....& it's great to see a small badge remain stubborn in pushing its beliefs....its focus on the drive... its faith in the squeezed, choked, dying combustion engine....
Gone is the era of bulletproof builds. With all these green regulations, we might never see em back....Just grateful to find 1 still passionate about putting the fun in the drive.
A 2 Mazda family here, too.[emoji4]

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**Nelson de Leon** · November 28th, 2017 02:22 AM

Mazda diesel user here. Well what can I say. The regeneration cycle actually helps me drive more out of town trips with my family. And whenever I smell that familiar scent, it gives me a reason to push the pedal to the metal. [emoji16]

Plus I can actually tell my wife (and she allows it) that I need to accelerate harder because it's the proper diesel maintenance for our vehicle. [emoji16]

No regrets highway or city. Very quiet. Sequential twin turbo has no lag. You get torque starting from 1,500rpm. No regrets. I was also in the same boat but I just said, which ever arrives first, gas AWD or diesel AWD, I'll get it and consider it as a sign from the heavens above. After 2 weeks, I got my diesel 2018 model. The rest is history in the making. [emoji16]

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**travajante** · November 28th, 2017 08:48 AM

Originally Posted by Nelson de Leon

Mazda diesel user here. Well what can I say. The regeneration cycle actually helps me drive more out of town trips with my family. And whenever I smell that familiar scent, it gives me a reason to push the pedal to the metal. [emoji16]

Plus I can actually tell my wife (and she allows it) that I need to accelerate harder because it's the proper diesel maintenance for our vehicle. [emoji16]

No regrets highway or city. Very quiet. Sequential twin turbo has no lag. You get torque starting from 1,500rpm. No regrets. I was also in the same boat but I just said, which ever arrives first, gas AWD or diesel AWD, I'll get it and consider it as a sign from the heavens above. After 2 weeks, I got my diesel 2018 model. The rest is history in the making. [emoji16]

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^This is how to care for a new diesel...of any badge.[emoji108][emoji106]
Bow & salute, Nelson sir!

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**btdthat** · November 28th, 2017 08:14 PM

Originally Posted by Nelson de Leon

Mazda diesel user here. Well what can I say. The regeneration cycle actually helps me drive more out of town trips with my family. And whenever I smell that familiar scent, it gives me a reason to push the pedal to the metal. [emoji16]

Plus I can actually tell my wife (and she allows it) that I need to accelerate harder because it's the proper diesel maintenance for our vehicle. [emoji16]

No regrets highway or city. Very quiet. Sequential twin turbo has no lag. You get torque starting from 1,500rpm. No regrets. I was also in the same boat but I just said, which ever arrives first, gas AWD or diesel AWD, I'll get it and consider it as a sign from the heavens above. After 2 weeks, I got my diesel 2018 model. The rest is history in the making. [emoji16]

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All I have read so far indicated the turbo diesel is the more powerful engine compared to the 2.5 gas so if you enjoy driving sporty and fast I think this is the engine for you. I test drove the 2.5 AWD gas and it was quick and responsive enough for me so if I end up with this I am ok. I generally drive slow and on highways I seldom go past 100 kph so the diesel might be too under utilized in my case. Per to my agent there are barely any shipments of the diesel on both CX5 and Mazda 6 so if I wait for diesel it will probably take even longer.