Outer Limits 4x4 Board

Does anyone know what the story is with the Td5 oil change as described in the owners manual. To quote "To prevent any possibility of air locks in the oil pump, it is recommended that filter renewal is carried out AFTER the engine oil has been changed." Now maybe I've missed something here, or quite possibly have been doing something wrong for a while now. But I like the idea of draining all the oil so when I put in new stuff it doesn't mix with any old stuff that may be in the filter. Normally I would
1. Remove sump plug. Drain
2. Remove oil Filter
3. Replace oil filter and sump plug
4. Refill

Away I go. Have I been doing something wrong?

LandRoverLyle wrote:Does anyone know what the story is with the Td5 oil change as described in the owners manual. To quote "To prevent any possibility of air locks in the oil pump, it is recommended that filter renewal is carried out AFTER the engine oil has been changed." Now maybe I've missed something here, or quite possibly have been doing something wrong for a while now. But I like the idea of draining all the oil so when I put in new stuff it doesn't mix with any old stuff that may be in the filter. Normally I would
1. Remove sump plug. Drain
2. Remove oil Filter
3. Replace oil filter and sump plug
4. Refill

Away I go. Have I been doing something wrong?

Funny that....the do the same thing....only thing I like to put a smear of new oil on the filter seal...dont have probs getting it off again

drain the oil then refill it then change the filter start it up let it sit then check the oil. tho i only thought some of the older v8s had the problem of the oil pump draining and not primeing again and i have not ever heard of it actualy hapening

I asked my landy service guy about this, and he said that it is the official workshop practice.

However, I drain, swap and fill. I don't like the idea of getting that dirty filter oil into my nice expensive Penrite HPR5....

I never had any issues with air locks at all....

More important, is to make sure you change the centrifuge at the same time.

MHRead wrote:I asked my landy service guy about this, and he said that it is the official workshop practice.

However, I drain, swap and fill. I don't like the idea of getting that dirty filter oil into my nice expensive Penrite HPR5....

I never had any issues with air locks at all....

More important, is to make sure you change the centrifuge at the same time.

Sorry but this is the wrong way to think about it:
(1) the "dirty" oil in your filter shouldn't mix with the other oil - unless you atart the engine.
(2) there is still dirty oil sitting around in the engine to mix with your clean oil
(3) sounds like you are changing the filter too often - which is actually a bad thing - AFAIK the centrifuge collector should be changed more often than the main (full flow) filter. The main filter should not be changed before the specified service intervals as it gets more efficient as it collects particles. And there is no point changing the centrifuge early as it should have a constant collection rate.

amshaw wrote:

LandRoverLyle wrote:Does anyone know what the story is with the Td5 oil change as described in the owners manual. To quote "To prevent any possibility of air locks in the oil pump, it is recommended that filter renewal is carried out AFTER the engine oil has been changed." Now maybe I've missed something here, or quite possibly have been doing something wrong for a while now. But I like the idea of draining all the oil so when I put in new stuff it doesn't mix with any old stuff that may be in the filter. Normally I would
1. Remove sump plug. Drain
2. Remove oil Filter
3. Replace oil filter and sump plug
4. Refill

Away I go. Have I been doing something wrong?

Funny that....the do the same thing....only thing I like to put a smear of new oil on the filter seal...dont have probs getting it off again

The oil on the filter seal is a MUST - it prevents the seal picking up when you tighten the filter.

Mark2 wrote:

amshaw wrote:

LandRoverLyle wrote:Does anyone know what the story is with the Td5 oil change as described in the owners manual. To quote "To prevent any possibility of air locks in the oil pump, it is recommended that filter renewal is carried out AFTER the engine oil has been changed." Now maybe I've missed something here, or quite possibly have been doing something wrong for a while now. But I like the idea of draining all the oil so when I put in new stuff it doesn't mix with any old stuff that may be in the filter. Normally I would
1. Remove sump plug. Drain
2. Remove oil Filter
3. Replace oil filter and sump plug
4. Refill

Away I go. Have I been doing something wrong?

Funny that....the do the same thing....only thing I like to put a smear of new oil on the filter seal...dont have probs getting it off again

The oil on the filter seal is a MUST - it prevents the seal picking up when you tighten the filter.

Yeah that makes sence....i was just told years ago by a great old bloke to put new oil on the seal....never really asked why