Omega Owners Forum

Chat Area => General Car Chat => Topic started by: amba on 19 January 2012, 15:05:43

Title: What a difference new oil makes
Post by: amba on 19 January 2012, 15:05:43
Dropped both gearbox sumps this morning  .( when rain stopped  ;D ;D ;D ) and replaced the filter/sump plug washer and refilled with 6.5lts of nice fresh Dex 3. :y

What came out was really nasty and black..hadn,t been replaced for over 110k so past its sell by date. :-X

Took car for a 10 mile drive and the gearbox is so smooth now I didn,t realise how bad it was before. :-X

Job well done and thanks for the excellent write ups in maintenance section  :y
Title: Re: What a difference new oil makes
Post by: Martian on 19 January 2012, 16:41:12
I do believe that the box holds almost double that from empty, so it might be a good idea to do another change in a few months time.
Title: Re: What a difference new oil makes
Post by: jonny2112 on 19 January 2012, 16:57:07
I'm looking forward to getting mine done too  :y
Title: Re: What a difference new oil makes
Post by: feeutfo on 19 January 2012, 17:51:35
As Martian says, its only possible to get half the atf out via the sumps.

I often wondered if its possible to unhook an oil pipe somewhere and replace all the oil by running the engine to pump old atf out, while simultaneously pumping the new stuff in... Bit like a pas fluid change. Needs a feed and return somewhere, oil cooler to rad pipes perhaps ???  Never looked meself. :-\

Defo a worthwhile service though. :)
Title: Re: What a difference new oil makes
Post by: Andy B on 19 January 2012, 17:55:24
....

I often wondered if its possible to unhook an oil pipe somewhere and replace all the oil by running the engine to pump old atf out, while simultaneously pumping the new stuff in...  .....

The 'professionals' do this using the pipes to & from the cooler in (front of) the radiator.  ;) ;)
Title: Re: What a difference new oil makes
Post by: Kevin Wood on 19 January 2012, 19:38:53
....

I often wondered if its possible to unhook an oil pipe somewhere and replace all the oil by running the engine to pump old atf out, while simultaneously pumping the new stuff in...  .....

The 'professionals' do this using the pipes to & from the cooler in (front of) the radiator.  ;) ;)

Yep, In theory, block the breather and it will draw fluid in through one cooler pipe as it's pumped out of the other. Never tried it, though.
Title: Re: What a difference new oil makes
Post by: Omegatoy on 19 January 2012, 19:42:23
I always undid the two connections under the wheelarch where there are rubber connectors,
one to an empty container the other in a full container of new auto fluid, start engine and let it do it itself, used a 20litre container full for the new fluid, same for empying old stuff into,
easy to see how much goine in and whats come out :y
Title: Re: What a difference new oil makes
Post by: feeutfo on 19 January 2012, 20:14:02
Worth perusing to swap all the fluid, but doesn't help with inspecting the sump contents, cleaning the magnet and silt out or cleaning the filter. Although i've never found anything in the filter anyway, as it's not fine enough.