Changing oil in a modern diesel

Jetta7 · Veteran Member

Changing oil in a modern diesel

Aus-Kiwi · Guru

No difference , drain and refill .

Jetta7 · Veteran Member

Thank you Aus-Kiwi

jetta

macka17 · Guru

Just do it hot.
And try to leave it sit for a while.
Let the dregs run out.
Also.
Have a shufty under car.
Where is drain plug. front, back or centre.
Left or right side??.

Figure out where it is and try to lean the car that way a bit
on curb, block under wheel\s etc.
That little few drops in corner will blacken your fresh oil instantly.
and ALWAYS drop oil and change filter together. Never every other one for filter ok.

And to finish off.
The money you save by DIY. Don't buy a bottle.
Buy better grade of oil.
Seriously.

Also.
Price the oil you decide on in 20ltr drums.

You can buy Full Synthetics for very little more,
Or at least a top line Semi Synth. Mineral.

oils ain't really Oils.
Some are rubbish.

Buy a "filter clamp" that is a BELT. not steel, lined band.
Easier. IF external filter.

Jetta7 · Veteran Member

Thanks Macka, good tip about draining, will look into the 20litre drum, vehicle takes 7litres per change.

Cheers

Jetta

-- Edited by Jetta7 on Tuesday 18th of April 2017 05:50:41 AM

valiant81 · Guru

Hi all;

Just another thing that can help, drain the old oil when the motor is hot, mind though it can burn you. That way all of the oil is hot and also the carbon build up that hopefully will also come out with the old oil. As others have said leave for a while, go have a cup of tea / beer etc. Replace drain plug and filter, and fill with the correct weight oil, check for leaks once motor is up and running again. Do not rev motor until you have full oil pressure. Re check the oil level and add if needed.

mezza56 · Senior Member

Hi Jetta

I use a engine oil flush every few changes , I use penrite preoduct .

warhorse · Senior Member

i would suggest you consult nissan first as some cars,ranger/mazda?must be filled asap otherwise if left, the oil pump drains with catastrophic results

Aus-Kiwi · Guru

Yes . I change the filter then put plug in and fill . If done on proper intervals it shouldn't be too dirty anyway ! Diesels have high detergent the deposits are in the oil .

Aus-Kiwi · Guru

Yes . I change the filter then put plug in and fill . If done on proper intervals it shouldn't be too dirty anyway ! Diesels have high detergent the deposits are in the oil .

Warren-Pat_01 · Guru

Hello Jetta,
I've heard that cars such as the new Fords have a maximum time limit between draining the engine oil to refilling it again otherwise the engine management system needs a reset. I could be wrong, just something I read in a 4WD magazine (perhaps to scare off would-be mechanics?).

I generally leave my Patrol to drain overnight in the garage.- then it's as clean as possible.

At one stage when I had my MQ, a dealer in NSW flushed the engine - it took a lot of kms before the oil turned black!

Aus-Kiwi · Guru

My worry if leaving oil drain too long . Someone else is going to take it shopping !! Have no idea who that could be ? I like doing my own servicing . That way you KNOW it has the correct oil .. Franchise dealers etc make a fortune selling oil they buy in builk .

DeBe · Guru

The problem with the oil not being picked up is with engines that have variable capacity oil pumps. It does happen & you can rev the engine all you like & they wont pick the oil up. This is what I use to back feed oil through where the Oil pressure switch goes. Its an old kero blow lamp just fill with oil & use air pressure to force the oil out. BT-50 OIL CHANGE.jpg BT50 ENG OIL BLEEDER.JPG

hako · Guru

Great mod Daryl - I'm about to make one myself exactly the same as in your picture. I knew I'd have a need for the old blow lamp someday.

Regards

Jetta7 · Veteran Member

Thanks Warren-Pat and DeBe,

great information coming about some of the nuances of different vehicles.

talking to my friendly service man at Nissan today they have said no problem with drain time, so that's good.

asked about oil flush and their comment was that all synthetic oil has appropriate cleaning agents if changed at correct intervals.

thanks everyone for your feedback.

cheers

Jetta

Jetta7 · Veteran Member

good advice Warhorse, I checked today on drain time no problems for my model apparently.

cheers

Jetta

Jetta7 · Veteran Member

Thanks Valiant for your reply , cup of tea sounds like a good part of the process blankstare

Jetta7 · Veteran Member

mezza56 wrote:
Hi Jetta
I use a engine oil flush every few changes , I use penrite preoduct .

Hi Mezza56 , thanks for this info, I have never used an oil flush, have you found the oil feel dirtier/gritty or thicker as in it seems to have collected more gunk when compared to just changing the oil with no flush?

cheers Jetta

mezza56 · Senior Member

Hi Jetta .

It doesn't seem any different I must admit .

Jaahn · Guru

Jetta7 wrote:
Thanks Warren-Pat and DeBe,
great information coming about some of the nuances of different vehicles.
talking to my friendly service man at Nissan today they have said no problem with drain time, so that's good.
asked about oil flush and their comment was that all synthetic oil has appropriate cleaning agents if changed at correct intervals.
thanks everyone for your feedback.
cheers
Jetta

Hi Jetta smile

I have never seen a manufacturer specification that recommends using oil flushing agents. Infact most actually say they are not allowed !! hmm

Make your own decisions based of facts not opinions on forums IMHO !! Regular oil and filter changes are recommended by all manufacturers. DO that !

Jaahn

Ron-D · Guru

I have spent a lifetime servicing cars and I really can't see the need for that gadget that looks like something out of a junkyard there would not be a good workshop in the country useing one that's just my personal opinion...

DeBe · Guru

Well Ron you obviously haven't worked in a country Ford dealership where a ranger did that & it had to be primed. That Junk yard gadget saved the day.

Kebbin · Guru

You will also find that some vehicles have their oil filter in extremely hard to get at places and may need a different oil filter removal tool, check it out first before emptying oil as it took me 30 minutes with a screwdriver once knocking holes thru turning 1/4 inch go again and again before getting it off.

Aus-Kiwi · Guru

Some idiots do filters too tight !! Man things blow blow out on here ! You can't get anything more simple than changing oil and filter !!

Kebbin · Guru

I would have liked to see you change this one Kiwi and don't leave remarks about others if you don't know the circumstances.

Santa · Guru

Aus-Kiwi wrote:
Some idiots do filters too tight !! Man things blow blow out on here ! You can't get anything more simple than changing oil and filter !!

Yep! basic stuff, if you don't have the right tool/s either get em, or, pay a mechanic to do the job, easy. wink

Aus-Kiwi · Guru

Kebb .. Are you the one who did it too tight ? Lol I have a few different removing tools . The one I use most is the chain type with extension socket .Fits most filters .

macka17 · Guru

The most important thing to have when servicing engines.
Is

Patience.

Don't use oversize socket or spanner to round plug head.

Don't pour fresh oil straight in.
As said. Have a cuppa\fag\walk\dinner etc.

If YOUR drain plug hasn't got a magnet on it.
An old Computer hdd magnet does a good job.
just pop it on drain plug.
THEN, if you getting any Swarf. chips, etc.
You'll see them.

Rub ring of fresh oil round filter gasket be4 offering it.

Do NOT tighten too much.
I go to touching face then another 2 or 3 inches or so
for compression.

Take drain plug to contact. then a nudge more.
Dab of silicon or Gasket goo for the insecure.

Only old farts like me pour the oil from a 20 ltr drum into filler hole
without spilling any.
But ONE DAY. I'll regret it.

Maybe even use a funnel. Which I don't own.
Only the tiny one for tramsm oil tubes.

And always check level after a quick run of donk.
Just to make sure.

Unless you are friends and know how much she actually likes.

YEP.
Like everybody says.
Dump the oil throw away filter. and top up with fresh oil.

There are ways and means for everything hey.

The old fart.

Kebbin · Guru

Aus-Kiwi wrote:
Kebb .. Are you the one who did it too tight ? Lol I have a few different removing tools . The one I use most is the chain type with extension socket .Fits most filters .

It was the first change after purchase, smart aleck and chain ratchet and strap wouldn't work it required a special remover with socket style grip to attach to end of filter.The filter was obviously put on dry.

-- Edited by Kebbin on Thursday 20th of April 2017 07:05:27 PM

Aus-Kiwi · Guru

Why take it that I meaning or referring to you ? Yes I have the strap type too if required . A hot engine doesn't require much more than 10 min to drain . Besides my own vehicles I change oil way before recommended . Dirty oil actually means the oil is keeping the engine clean . I have a garage with hoist etc .