Gear Oil service

Technical Area Routine Servicing
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  1. My model of MX-5 is: __2018 ND RF
  2. I’m based near: __SURREY
  3. I’m looking for technical help or recommendations on: __GEAR OIL

Hi all
Which gear oil should I use for changing in 5 year service
6 speed manual

Thanks

Kevin

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Interested in reply’s myself

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After consultations on here I used this Millers Oils Motorsport CRX 75w90 NT+ Fully Synthetic synth Gear Oil 5L | eBay

My observations are that the first few gear changes from cold are a little ‘sticky’. More so than the original oil. It ‘warms up’ within a mile and the change becomes slick. Once fully warm the change is faultless. (Note this gear box does not like to be ‘rushed’ even when hot and this oil does not change this).

I would recommend changing the differential oil as well, I used this Diff Oil, Genuine Mazda Long Life Hypoid SG1, 1 Ltr, Mk4 & RF – MX5 Parts

Don’t forget new sealing washers. (you could get away with reusing but buy in bulk and they are pence)

Plus, undo the filler first just to be on the safe side!!
:heart:

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I’d recommend Millers CRX LS 75w/90 NT+ for the differential.

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Thanks gents, I am new to car servicing at this level… where is the diff? :rofl: :rofl:

Thanks again

Kevin

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Rear axle is the diff. :grinning: