↓ Advertise on Defender2 ↓

Home > Maintenance & Modifications > Diff/Transfer case oil - EP80/90 GL4 or GL5
Post Reply  Down to end
Page 2 of 2 <12
Print this entire topic · 
Mo Murphy



Member Since: 01 Jun 2008
Location: Letchworth Garden City, Herts
Posts: 2234
United Kingdom 1984 Defender 90 BMW M57 3.0 Diesel HT Auto Pennine Grey
So what's so good about swepco ? Is it that its just reassuringly expensive ? What unexpected noticable difference does it make over more inexpensive brands ? Likeomg, you seem to have had a favourable experience with it, how has it worked better than others ?
Please share your experiences guys.
Mo The Land Rover 90 - Many are called, few are chosen.

50 Shades of Pennine Grey
Post #1020088 4th Jan 2024 11:55am
View user's profile Send private message View poster's gallery Reply with quote
MK



Member Since: 28 Aug 2008
Location: Santiago
Posts: 2418
Chile 2007 Defender 110 Puma 2.4 SW Chawton White
Defenetly way diiferent from a typical 80W-90


 Puma 110" SW

.............................................................
Earth first. Other planets later
Post #1020091 4th Jan 2024 12:12pm
View user's profile Send private message View poster's gallery Reply with quote
Zed



Member Since: 07 Oct 2017
Location: In the woods
Posts: 3299
United Kingdom 2010 Defender 110 Puma 2.4 XS CSW Santorini Black
Mo Murphy wrote:
So what's so good about swepco ? Is it that its just reassuringly expensive ? What unexpected noticable difference does it make over more inexpensive brands ? Likeomg, you seem to have had a favourable experience with it, how has it worked better than others ?
Please share your experiences guys.
Mo


I’ve been using Swepco for a few years now and will continue to do so as it was recommended to me but ’reassuringly expensive’ is a fair description. WARNING.
This post may contain sarcasm.
Post #1020093 4th Jan 2024 12:46pm
View user's profile Send private message View poster's gallery Reply with quote
Mo Murphy



Member Since: 01 Jun 2008
Location: Letchworth Garden City, Herts
Posts: 2234
United Kingdom 1984 Defender 90 BMW M57 3.0 Diesel HT Auto Pennine Grey
MK wrote:
Defenetly way diiferent from a typical 80W-90




Thanks MK, what exactly is that telling me about how it's better than other oil ? Sorry, I don't know much about oil properties !
Mo The Land Rover 90 - Many are called, few are chosen.

50 Shades of Pennine Grey
Post #1020095 4th Jan 2024 1:16pm
View user's profile Send private message View poster's gallery Reply with quote
MK



Member Since: 28 Aug 2008
Location: Santiago
Posts: 2418
Chile 2007 Defender 110 Puma 2.4 SW Chawton White
I do not know if it is better, but both viscosities (at 40 and 100C) are way way lower than a typical 80W-90 (let´s say 20 and 150 cSt vs 7.19 and 37.9 cSt). So it is something radical, different testing method or there is a mistake in their publication. I cannot tell. Puma 110" SW

.............................................................
Earth first. Other planets later
Post #1020097 4th Jan 2024 1:37pm
View user's profile Send private message View poster's gallery Reply with quote
Mo Murphy



Member Since: 01 Jun 2008
Location: Letchworth Garden City, Herts
Posts: 2234
United Kingdom 1984 Defender 90 BMW M57 3.0 Diesel HT Auto Pennine Grey
Interesting ! But could lower viscosity not be a bad thing ? Surely then it's acting like a less viscous grade of oil than the recommended ? Could the same thing not be achieved by just putting cheaper thinner viscosity oil in there in the first place ?

It certainly seems to be a minefield and I'm unconvinced that Swepco oil is worth the additional expense especially as it appears to act like a grade of oil not recommended and so could be detrimental !

I'll continue with Ashcrofts recommendations.

Thank you gentlemen for your thoughts.
Mo The Land Rover 90 - Many are called, few are chosen.

50 Shades of Pennine Grey
Post #1020100 4th Jan 2024 2:08pm
View user's profile Send private message View poster's gallery Reply with quote
Dinnu



Member Since: 24 Dec 2019
Location: Lija
Posts: 3414
Malta 2012 Defender 90 Puma 2.2 CSW Santorini Black
What makes one oil better than another?
I think to the normal user, primarily would be the sound an engine, or since the subject is about gear oil, a diff would make. In case of a gearbox, you would add the easy of gear change.

When the LT77 was released, Rover specified ATF for ease of gear change. Its not because its was a better oil to protect bearings, synchros or gears!

And as mentioned earlier, what warranted a change if viscosities in pre and post Td5 LT230s Laughing Perhaps that extra 0.001mpg? 1988 90 Hard Top, 19J Diesel Turbo, Shire Blue - Restoration ongoing
2012 90 CSW, 2.2TDCI, Santorini Black
Post #1020101 4th Jan 2024 2:18pm
View user's profile Send private message View poster's gallery Reply with quote
excossack



Member Since: 22 Feb 2012
Location: North West
Posts: 5849
United Kingdom 1999 Defender 110 Td5 SW Caledonian Blue
Ashcrofts suggest a EP80/90 oil. I did ask if a GL4 or GL5 spec and the answer was EP80/90. 1999 Defender TD5 110

Regards
John M0VAZ
Econet Station 48 no clock
Post #1020102 4th Jan 2024 2:26pm
View user's profile Send private message View poster's gallery Reply with quote
MK



Member Since: 28 Aug 2008
Location: Santiago
Posts: 2418
Chile 2007 Defender 110 Puma 2.4 SW Chawton White
You can get EP80W-90 in GL4 or GL5 flavors. All depends on the concentration of sulfur content. GL5 has about the double of such EP additives. Puma 110" SW

.............................................................
Earth first. Other planets later
Post #1020103 4th Jan 2024 2:31pm
View user's profile Send private message View poster's gallery Reply with quote
excossack



Member Since: 22 Feb 2012
Location: North West
Posts: 5849
United Kingdom 1999 Defender 110 Td5 SW Caledonian Blue
I did spot GL4 and GL5 spec. I think it will be GL4 for transfer case and GL5 for the front diff. 1999 Defender TD5 110

Regards
John M0VAZ
Econet Station 48 no clock
Post #1020104 4th Jan 2024 2:36pm
View user's profile Send private message View poster's gallery Reply with quote
Likeomg



Member Since: 29 Jun 2012
Location: Lake District / Newcastle
Posts: 2641
2010 Defender 90 Puma 2.4 HT Stornoway Grey
Sorry for the late reply,

Gearshifts are a lot smoother for me, my gearbox is only about 25 - 30k miles with a short shift and bowler gearstick and it's a nicer experience shifting now.

Diffs with the winchester ATB setup i had, previously there was some noise but since making the change it's a lot more silent.
Post #1020133 4th Jan 2024 6:18pm
View user's profile Send private message View poster's gallery Reply with quote
LR90XS2011



Member Since: 05 Apr 2011
Location: bickenhill
Posts: 3643
United Kingdom 2011 Defender 90 Puma 2.4 XS CSW Galway Green
Dave from Ashcrofts told me this was OK for his ATBs in defender axles

"Castrol Axle EPX 80W-90 Mineral Car Gearbox Oil GL5"

so that is what I have been using with no issues DEFENDER 90 TDCI XS,

I hope everyone is well and your land rovers make you happy
Post #1020153 4th Jan 2024 9:01pm
View user's profile Send private message View poster's gallery Reply with quote
MK



Member Since: 28 Aug 2008
Location: Santiago
Posts: 2418
Chile 2007 Defender 110 Puma 2.4 SW Chawton White
It turned out the published specs from the reseller are wrong.

I can post the specs sheet if it is allowed by the forum.


Mo Murphy wrote:
MK wrote:
Defenetly way diiferent from a typical 80W-90




Thanks MK, what exactly is that telling me about how it's better than other oil ? Sorry, I don't know much about oil properties !
Mo
 Puma 110" SW

.............................................................
Earth first. Other planets later
Post #1020208 5th Jan 2024 12:30pm
View user's profile Send private message View poster's gallery Reply with quote
excossack



Member Since: 22 Feb 2012
Location: North West
Posts: 5849
United Kingdom 1999 Defender 110 Td5 SW Caledonian Blue
In the end I went for Comma GL4 and GL5 oils. Cheers for assistance one and all. 1999 Defender TD5 110

Regards
John M0VAZ
Econet Station 48 no clock
Post #1020326 6th Jan 2024 7:06pm
View user's profile Send private message View poster's gallery Post Reply
Post Reply  Back to top
Page 2 of 2 <12
All times are GMT

Jump to  
<  Previous Topic | Next Topic >
Posting Rules
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum



Site Copyright © 2006-2024 Futuranet Ltd & Martin Lewis
DEFENDER2.NET RSS Feed - All Forums