Oils

**landoman** · 1st May 2025, 07:55 PM

Planning to change my oils ……gear box transfer case and diffs
…specs mostly GL4 and GL5 which I can get from Penrite

the gearbox oil specified as Castrol BOT 130M …or equivalent….
This seems to be very hard to find so Penrite have a gearbox oil they recommend for defenders

anyone used the Penrite gearbox oil and does it do the job safely ?…..don’t want to make an expensive mistake so thoughts much appreciated

**2012Ninety** · 14th May 2025, 12:41 PM

I haven’t used the Penrite oil, but have been using Motul Gear 300 75-90 for the last 150,000km (change every 40k) without issue. Gear changes are nice and smooth… for a Defender.

**Patrick110td5** · 15th May 2025, 04:14 PM

Mechanic told me penrite transgear was the best fit for r380 and lt230 in Aus
75w-80 for r380
75w-90 for lt230

**TonyC** · 15th May 2025, 04:55 PM

Originally Posted by Patrick110td5

Mechanic told me penrite transgear was the best fit for r380 and lt230 in Aus
75w-80 for r380
75w-90 for lt230

From the Castrol BOT 130 reference I assume the OP has a Puma with a 6 speed MT82 gearbox.

Tony

**roverrescue** · 17th May 2025, 06:22 AM

Its been two weeks so you've probably bought the Penrite but for what it is worth.

After much procrastination, for my MT82 I settled on Castrol Syntrans 75-85 its a full synth GL4 spec oil
Have now ticked over 7 years and into the third change of oil. No shifting issues seems to be doing the job.

**landoman** · 20th May 2025, 08:22 PM

Originally Posted by Patrick110td5

Mechanic told me penrite transgear was the best fit for r380 and lt230 in Aus
75w-80 for r380
75w-90 for lt230

What does r380 and it230 mean

I have a defender 110 puma 2.2 2016

the handbook specs call for a GL4 Or. a GL5 in the transfer …..and the Castro BOT 130 m in the gearbox ……..

I’m leaning to the Penrite 75W90 GL4 for the gearbox
and 75W90 GL 5/6 for the transfer case

did see on one video that should use GL4 rather than GL 5 in the transfer box which seems contrary to the hand book specs So I’m a bit confused

**TonyC** · 20th May 2025, 08:40 PM

Originally Posted by landoman

What does r380 and it230 mean

I have a defender 110 puma 2.2 2016

the handbook specs call for a GL4 Or. a GL5 in the transfer …..and the Castro BOT 130 m in the gearbox ……..

I’m leaning to the Penrite 75W90 GL4 for the gearbox
and 75W90 GL 5/6 for the transfer case

did see on one video that should use GL4 rather than GL 5 in the transfer box which seems contrary to the hand book specs So I’m a bit confused

The R380 is the 5 speed manual gearbox used in Defenders from mid 90s to 2006??, and Disco 1 and 2
The LT230 is the transfer case used with all the 5 and 6 speed gearboxes in the Defender and all Disco 1 and 2s.

Your Defender 110 Puma 2.2 has a MT82 gearbox and a LT230 transfer case.

Tony

**landoman** · 20th May 2025, 08:41 PM

***

**landoman** · 20th May 2025, 08:45 PM

Originally Posted by TonyC

The R380 is the 5 speed manual gearbox used in Defenders from mid 90s to 2006??, and Disco 1 and 2
The LT230 is the transfer case used with all the 5 and 6 speed gearboxes in the Defender and all Disco 1 and 2s.

Your Defender 110 Puma 2.2 has a MT82 gearbox and a LT230 transfer case.

Tony

Thanks for that ………helps a lot …….im being a bit pedantic on this oil issue but I’m learning as I go

Once I sort out my confusion over the use of GL5 in the transfer case I’ll be sorted

**DieselDan** · 22nd May 2025, 01:55 PM

I'm using the penrite oils in my puma.
The ProGear GL4 75-90 in the gearbox and the ProGear 75-90 in the trans case.

The name of the latter doesn't include it's GL rating but it is GL5.

For the MT82 gearbox, the requirement is the Ford WSD-M2C200-2 spec, which the ProGear GL4 meets.

The service schedule shows gearbox oil change every 200,000km, but I've been doing 80k to align with the diff/t'case oils. Might go down to 40k intervals for box and diffs as it gets older!

Thread: Oils

Thread Tools

Oils

Tags for this Thread

Bookmarks

Bookmarks

Posting Permissions