trinituner.com

Hi all,

What's the recommended engine oil? Thanks.

0W20
Use our favourite brand.
5W20 would also be fine.

For the love of motoring please do not use 0w20 or 5w20. Those oils are to light and would offer very little protection if you run the vehicle hard
Use 0w30, 5w30 or 10w30.

For the love of motoring, use what Mazda recommended. Unless we know better than them.

Big Z wrote:For the love of motoring, use what Mazda recommended. Unless we know better than them.

Funny enough, Mazda recommends 0/5/10w30 for the Z series engines. We dont usually have Skyactiv here which is what you quoted viscosity for.

But i guess you knew that.

We do know better than them... Most of those 5w20 recommendations started in the US when car manufacturers were concerned about their CAFE (corporate average fuel economy) ratings. I read on an rx8 forum that persons who used Mazda recommended 5w20 suffered with serious engine wear issues just after the warranty period... While persons who ignored it and used 10w30 didn't have any problems.
I rather have less engine wear and worse fuel economy than more engine wear with better fuel economy.
Remember also that viscosity as stated was tested at two temperatures... When you go pass the high temp value ... The oil gets even thinner and offers less in the way of protection

Big Z wrote:eLinky

Mazda ZY Oil.png

Exactly

Hey any one know the oem # for mazda 3 oil filter

The Mazda 3 2014 model. What type of engine oil to use. It's local model