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  Reply # 1459861 1-Jan-2016 15:33
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 - The diesel engine is prone to the particulate filter clogging up if driven continuously for very long distances in slow stop/start conditions.

The Mazda particulate filters are designed to burn off the excess soot when driving at highway speeds, if you buy one you need to make sure you drive it for a good drive every couple of weeks. The early CX-5 diesels were particularly bad for this, when it gets clogged up the car switches itself into limp-home mode.

Yes, it's not a problem for me because I use public transport around town and my car only gets used for highway driving, but for an Aucklander using the car daily in heavy traffic it could become a problem.

For me this reason alone is enough reason to think twice about buying a diesel again; the particulate burn off is a real PITA in my Mazda 6 diesel, as I use it as my daily commute car within a small city. Also agree the figures don't stack up unless doing high-sh ks. Until RUCs are sorted, the system's against smaller diesels.

All that aside, I love the engine. Used it for towing for the first time recently and didn't even notice the heavily laden trailer attached!

Yes, I found RUC's a PITA when I had a Diesel. 

I suppose if they added the tax to the fuel (like they do in Europe) the farmers would complain, and running a 'red diesel' system would be too fiddly here.

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  Reply # 1460121 2-Jan-2016 12:04
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I've decided I will continue to look at a petrol - thinking of a 2.5-3 liter straight six at this stage.
Test drove a couple the other day and was pretty impressed by their economy, but also the punch they could give when needed.

I have to agree that with my travel arrangements and the current RUC system, Diesel isn't going to be the way for me this time round.

I'm also considering lessening my budget, and still getting an upgrade to my current vehicle for now (Still used, etc.)- but maybe a slightly older model, then in a few years, look at getting a Tesla when they are released. 

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