tappety after oil change

[peeky1323]

Hi eveyone,

Did an oil and filter change on my new bongo. It was so black and thick I was shocked. I used QX 10w 40 semi synthetic diesel/pertol oil and a Mann filter. Supposed to be good for diesel engines. After the change I can notice what sounds like tappets louder than before the change. Is this oil OK? Going away this week and want to make sure its OK

Cheers

Matt

[Bob]

Can't comment on the oil you've put in but engine oil in a diesel goes black pretty much the first day you use it. Nature of the beast, lots of carbon and nothing to worry about.

From First Principles check the clips that hold the seat down, a loose one could account for the sudden tappet noise. Oh yes, been there.

[cmm303]

5W30 is specified viscosity for Bongo Diesel engine. I'm sure I've read here of people using 10W40 without problem but worth doing some searches.

The QX oil does not claim EGR compatibility. I'm no oil expert but advice on here is to ensure it is for engines with EGR. Maybe with most diesels having EGR it is assumed. This would effect the oil's durability, how long it will continue to give protection.

A tappety sound for a few seconds after starting is common with filters that don't have a non-return. Can't comment on your filter.

[teenmal]

peeky1323 , I don't think your type of oil will be the NOISE problem(providing you have refilled to correct level) its more likely to be a filter issue, or lack of oil pressure, if the noise is now permanent I would check the Oil Pressure and or replace the filter.

If the old oil was really bad the engine could need a good flush/clean Out
But always advisable to check the pressure.

Good luck.

[JoeC]

10w/30 is the advised oil but easier to get hold of 10w/40. Don't flush an old engine too often as removing old caked on stuff may cause other issues.

[Northern Bongolow]

egr grade oil is the way.

http://www.penriteoil.com.au/tech_pdfs/ ... 202014.pdf

the oil you used is for both petrol and diesels, the grade is ok too but its listed for direct injection really modern motors but doesnt state egr engines. not saying its wrong -------- but egr oil is a different spec as in the link above.

[cmm303]

egr grade oil is the way.

http://www.penriteoil.com.au/tech_pdfs/ ... 202014.pdf

the oil you used is for both petrol and diesels, the grade is ok too but its listed for direct injection really modern motors but doesnt state egr engines. not saying its wrong -------- but egr oil is a different spec as in the link above.

i read that page and note the relevant API (American) standards explicitly provide for EGR compatibility. However the QX oil spec mentioned by the OP only references ACEA (French / European) standards (Ax, Bx, Cx) which don't appear to feature EGR compatibility.
I wondered if there are any diesels without EGR, apart from some very old vehicles? So if just about all diesels have EGR, shouldn't oil for diesels be able to handle EGR (higher acidity and more muck) without special mention. I'm no expert (!) just thinking. Ouch.

[BongoBongo123]

I think my engine is marginally louder since oil change (and I have not put millers in this tank yet which quietens without question) but I put it down to flowing more freely and doing it's job. Oil loaded with huge quantities of carbon and other chemicals must be somewhat different to brand new semi synthetic fresh oil in its ability protect/move/lubricate and dampen sound. How I do not know but it must be different.

The seat clips and the integrity of the foam surround on the underside of the chairs is an obvious one, do check that out. Also keep an eye out for leaks. Also check the filler cap is still on given it is screw type with no nylon retainer clip.

[mikeonb4c]

I think my engine is marginally louder since oil change (and I have not put millers in this tank yet which quietens without question) but I put it down to flowing more freely and doing it's job. Oil loaded with huge quantities of carbon and other chemicals must be somewhat different to brand new semi synthetic fresh oil in its ability protect/move/lubricate and dampen sound. How I do not know but it must be different.

The seat clips and the integrity of the foam surround on the underside of the chairs is an obvious one, do check that out. Also keep an eye out for leaks. Also check the filler cap is still on given it is screw type with no nylon retainer clip.

I have been wondering the same as you BB123 - I can imagine crud filled oil having an ability to dull metal on metal tapping sounds as it maybe not disperse / flow so freely etc.

[Northern Bongolow]

egr deffo makes the oil thicker, and turns it into grinding paste.

http://energy.gov/sites/prod/files/2014 ... _ajayi.pdf

[Northern Bongolow]

egr grade oil is the way.

http://www.penriteoil.com.au/tech_pdfs/ ... 202014.pdf

the oil you used is for both petrol and diesels, the grade is ok too but its listed for direct injection really modern motors but doesnt state egr engines. not saying its wrong -------- but egr oil is a different spec as in the link above.

i read that page and note the relevant API (American) standards explicitly provide for EGR compatibility. However the QX oil spec mentioned by the OP only references ACEA (French / European) standards (Ax, Bx, Cx) which don't appear to feature EGR compatibility.
I wondered if there are any diesels without EGR, apart from some very old vehicles? So if just about all diesels have EGR, shouldn't oil for diesels be able to handle EGR (higher acidity and more muck) without special mention. I'm no expert (!) just thinking. Ouch.

i think the manufacturers like to be a bit vague when it comes to this sort of thing.
from this link owt that starts with a E wont hurt much, then combine low sulphur diesel which we are all on then this limits things.
the way i judge it is if it doesnt say it on the tub, -------

https://www.acea.be/uploads/publication ... uences.pdf

[cmm303]

egr grade oil is the way.

http://www.penriteoil.com.au/tech_pdfs/ ... 202014.pdf

the oil you used is for both petrol and diesels, the grade is ok too but its listed for direct injection really modern motors but doesnt state egr engines. not saying its wrong -------- but egr oil is a different spec as in the link above.

i read that page and note the relevant API (American) standards explicitly provide for EGR compatibility. However the QX oil spec mentioned by the OP only references ACEA (French / European) standards (Ax, Bx, Cx) which don't appear to feature EGR compatibility.
I wondered if there are any diesels without EGR, apart from some very old vehicles? So if just about all diesels have EGR, shouldn't oil for diesels be able to handle EGR (higher acidity and more muck) without special mention. I'm no expert (!) just thinking. Ouch.

i think the manufacturers like to be a bit vague when it comes to this sort of thing.
from this link owt that starts with a E wont hurt much, then combine low sulphur diesel which we are all on then this limits things.
the way i judge it is if it doesnt say it on the tub, -------

https://www.acea.be/uploads/publication ... uences.pdf

E = heavy duty diesel. My Bongo might have been sounding a bit agricultural but what are you trying to say .

Interesting that EGR only gets mentioned in the E classifications. Thanks.

[BongoBongo123]

Sorry a bit off topic but I still never got to know if I have EGR or not. I have suspicion I saw a blanking plate of some kind on the block come to mention it recently, but would not know if it was or was not. I have not been far in the Bongo this late winter spring so far, just went out now to lift the roof up and down once just to keep it free, I do that once a month now.

As you say Mike it must be thinner in consistency as fresh, it at least looks more heavy when it comes out, there looks like there is as much soot particulants as oil itself. It seems as if it's mass/density may have increased.

It would be great if soot particulants could be easily filtered from diesel exhaust using some such liquid filtering method. Then you could dispose the oil every now and then and reduce pollutants.

[Northern Bongolow]

My Bongo might have been sounding a bit agricultural but what are you trying to say .

Interesting that EGR only gets mentioned in the E classifications. Thanks.

on page 4 of the link it says that C grades are suitable for engines with after treatment devices but only mentions cats and dpf filters, so does this include egr---------.

[cmm303]

My Bongo might have been sounding a bit agricultural but what are you trying to say .

Interesting that EGR only gets mentioned in the E classifications. Thanks.

on page 4 of the link it says that C grades are suitable for engines with after treatment devices but only mentions cats and dpf filters, so does this include egr---------.

Maybe cats and dpf are considered more "after" than EGR.