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excossack



Member Since: 22 Feb 2012
Location: North West
Posts: 5843
United Kingdom 1999 Defender 110 Td5 SW Caledonian Blue
Td5 oil spec 10p engine.
5w/30 fully synth or 5w/30 semi synth ?
Currently on 5w/30 Fuchs Titan and have a few leaks.
Saw a mention about fully synth making seals go hard, so was wondering if semi is better? (and replace seals at the same time: Rocker & front cam seal) 1999 Defender TD5 110

Regards
John M0VAZ
Econet Station 48 no clock
Post #712649 16th Jun 2018 4:45pm
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miker



Member Since: 13 Sep 2015
Location: Surrey
Posts: 1763
United Kingdom 1999 Defender 110 Td5 CSW Rioja Red
Mannol 20 Litre 5w30 ZETEC Semi Synthetic

I run the above, right grade, recommended for TD5 by a few people, and £50 for a 20L drum.

Still have a bit of an oil leak, but it's always done that...
Post #712656 16th Jun 2018 5:30pm
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rallysteve



Member Since: 10 Feb 2014
Location: Cumbria
Posts: 2228
United Kingdom 2002 Defender 110 Td5 DCPU Keswick Green
I have run Smith and Allen 5w30 fully synthetic oil for the last 4 years and it seems fine. No new leaks, just the usual land rover/td5 leaks

Steve 02' 110 TD5 Double Cab Rebuild Thread
Post #712667 16th Jun 2018 6:45pm
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excossack



Member Since: 22 Feb 2012
Location: North West
Posts: 5843
United Kingdom 1999 Defender 110 Td5 SW Caledonian Blue
Cheers chaps, My leaks are mainly front cam seal and rear rocker half moon. 1999 Defender TD5 110

Regards
John M0VAZ
Econet Station 48 no clock
Post #712959 18th Jun 2018 7:05am
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derbywill



Member Since: 25 Mar 2010
Location: Derbyshire
Posts: 558
England 2005 Defender 90 Td5 XS CSW Java Black
I run 5w30 fully synthetic, the rocker cover half moon and front cam seals are prone to leaking whatever oil you have in!

When replacing them I use a small smear of RTV silicone and not had a problem since.

Cheers

Will 2005 90 XS
1954 86'' Series 1 tilt
1968 88” 2A 200tdi
2002 110 Hardtop
Post #713155 19th Jun 2018 11:45am
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