Thread: Nulon 75W-90 full synthetic gear oil.

One thing that has me wondering is:
What is "fully synthetic" oil made from?

Cheers, mick.

i tried nulon and i thought it was crap..

syntrans is wayyyy much better product

(tried on my wife's hi-ace camper)

After using syntrans in my gearbox and finding it seemed to loose it's capacity to maintain good shift characteristics, I've recently put a Penrite syn gear oil in it. It's still early days, but good shifting is back and I'll be watching to see if it lasts till the 20,000km change time which the syntrans didn't quite make. The price is also much better.
Don.

Thanks for that. I have always used the Penrite 70w-75 Pro Gear but I wanted to try the Syntrans for its higher temperature rating. My problem is availability here.

IIRC Nulon 75w-90 is a GL5 and the spec for the R380 is GL4 which is the Nulon 75w-85 smooth shift however as Inc says it is not that good in the R380 anyway.

FWIW The Penrite 75w-85 fully synthetic was far better in my R380.
And the Penrite Transgear 75w-80 is almost identical in spec to MTF94 (LR recommended lube for the R380) although I haven't tried it.

Cheers,
Paul.

Cairns is nice but winter here is COLD. I'll stick with the Penrite 70W-75, it has done me well so far.

What I did find of interest is that all the oil manufactures web sites, when you list a 300tdi Defender in their lubricants search, recommend ATF for the gearbox except Penrite, which list their 70W-75 Pro Gear. Perhaps none of the others know about the Land Rover memo a dozen or more years ago recommending low viscosity gear oil. Another thing I found was; too bad we don't get AMSOIL.

Originally Posted by mick88

One thing that has me wondering is:
What is "fully synthetic" oil made from?

Cheers, mick.

Just for you, Mick.

"Synthetic oil is a lubricant consisting of chemical compounds that are artificially made (synthesized). Synthetic lubricants can be manufactured using chemically modified petroleum components rather than whole crude oil, but can also be synthesized from other raw materials."

"It is made through a chemical process known as the Fischer-Tropsch process, starting with raw materials like methane, carbon monoxide, and carbon dioxide. This process was developed by Germany in WWII, when that country's access to crude oil was very limited."

Originally Posted by ugu80

Cairns is nice but winter here is COLD. I'll stick with the Penrite 70W-75, it has done me well so far.

What I did find of interest is that all the oil manufactures web sites, when you list a 300tdi Defender in their lubricants search, recommend ATF for the gearbox except Penrite, which list their 70W-75 Pro Gear. Perhaps none of the others know about the Land Rover memo a dozen or more years ago recommending low viscosity gear oil. Another thing I found was; too bad we don't get AMSOIL.

Just had a look at the Penrite Lube Guide and 70w-75 is recommended for the 300tdi R380 as you have said which was news to me.
And yet the Td5 R380 recommended lube is the 75w-80 Transgear?
I know there have been slight changes to the R380 over the years but I didn't realise the actual gear oil spec would be different.
But good to see neither recommendation is ATF anymore.

Learn something every day