rszemeti
Well-Known Member
Well, if you choose to ignore Volvo's advice, that is up to you.
Volvo penta oil query
- Thread starter RJJ
- Start date
Well, if you choose to ignore Volvo's advice, that is up to you.
Momac
Well-Known Member
I'm not - that's the correct spec for my engine .
rszemeti
Well-Known Member
Volvo VDS4 and VDS4.5 are backwards compatible with the older VDS3 and Volvo recommend that you use the later specifications in preference to the older spec.
Momac
Well-Known Member
RichardS
N/A
I love these "oil" threads ..... even more than "anchors" or "Colregs". 
Richard
Richard
Old Harry
Well-Known Member
Its surprising many dont even consider using the search facility all 3 above take up zillions of bytesI love these "oil" threads ..... even more than "anchors" or "Colregs".
Richard
Rafiki
Well-Known Member
For good quality oils at very good prices use this website:
https://www.lubetechshop.co.uk/
At one place on the website it says there is a postage charge, but when you come to pay no postage is added and elsewhere on the site it says everything is carriage free.
Also use code SAVE5 for an extra 5% off.
I think I used this one:
Taurus SHPD E7 15w/40. Diesel Engine Oil Volvo Approved ACEA E7 A3/B3, A3/B4, API CI-4/SL
just under £50 for 20 litres delivered.
There is a vast choice!
https://www.lubetechshop.co.uk/
At one place on the website it says there is a postage charge, but when you come to pay no postage is added and elsewhere on the site it says everything is carriage free.
Also use code SAVE5 for an extra 5% off.
I think I used this one:
Taurus SHPD E7 15w/40. Diesel Engine Oil Volvo Approved ACEA E7 A3/B3, A3/B4, API CI-4/SL
just under £50 for 20 litres delivered.
There is a vast choice!
rszemeti
Well-Known Member
Because they enjoy the extra profits selling low grade oil to gullible people?
vyv_cox
Well-Known Member
If you look at the catalogues of any major oil producer you will see that they produce a huge range, some first introduced many years ago. For example, it is not all that long since Shell discontinued API CA for one specific engine. If later versions are superior and totally interchangeable why would they continue to make them? There are no extra profits in small batches, just the opposite.
Momac
Well-Known Member
So you previous statement was meant to be a joke?
rszemeti
Well-Known Member
VDS4.5 is backwards compatible with VDS4 and VDS3
VDS4 is backwards compatible with VDS3
It's all over Volvo's marketing stuff for the oil spec, eg:
Better oxidation resistance? I'll take that, and that is VDS4.5 to VDS4, ... compared ot VDS3 it will be even better.
Etc etc ... why would you want to use a lower performance oil? I guess if I was selling engine parts and new engines, I'd probably be happy to see you use the lower grade stuff.
Momac
Well-Known Member
Vds4.5 is backwards compatible with vds4.
But where does it say it it backwards compatible with vds3?
But where does it say it it backwards compatible with vds3?
rszemeti
Well-Known Member
If you dig through, you will find that you can use a VDS4 wherever you can use a VDS 3 ... ad note is says "wherever VDS-4.0 or API CJ-4 oils are used. " not "wherever VDS-4.0 or API CJ-4 oils are specified" .. hence if you are using a VDS 4, in place of a VDS 3, there is no reason not to use a VDS4.5
Same applies to the CG - CH -CI -CJ - CK series ... read the spec, they explicitly state they are backwards compatible ...
Same applies to the CG - CH -CI -CJ - CK series ... read the spec, they explicitly state they are backwards compatible ...
Momac
Well-Known Member
You now seem less certain .
Lets be clear. VP don't recommend using vds4 instead of vds3.
But they may imply somewhere the later oil may be used.
I will stick with vds3.
rszemeti
Well-Known Member
Ian_Rob
Well-Known Member
Keypart now sell VDS 4.5 as the recommended oil for my Volvo D1-30B. It used to be VDS 3.
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vyv_cox
Well-Known Member
I believe you are making the same mistake that many others have made before you. Boats are not cars and their engine requirements are very different. What is the value of better oxidation resistance in an oil that is used to chug the boat out of the marina and then switched off to go sailing? Oxidation resistance is required in automobiles whose oil temperature runs at over 90C for hours on end. When is your boat engine going to do that?
For years Volvo have promoted the 'one size fits all' advice for oils. Personally I do not believe that the same oil selected for a turbocharged car blasting up and down the motorway will do equally well in a single cylinder marine auxiliary engine. Fair enough if you do, buy an oil with a high TBN and see what happens.
rszemeti
Well-Known Member
It's not just oxidation control:
Why would you not want better wear protection?
You have shown me no evidence whatsoever to suggest that Volvo Penta would not have specified a VDS 4 or 4.5 oil had one been available when the engine was made, and nothing to suggest a reason not to use the higher performing oil. In particular, the improved chemical stability of the later oils, lower moisture absorbtion, reduced acidification would all be beneficial in a marine enviroment. I'm happy with my decision to follow their advice.
Why would you not want better wear protection?
You have shown me no evidence whatsoever to suggest that Volvo Penta would not have specified a VDS 4 or 4.5 oil had one been available when the engine was made, and nothing to suggest a reason not to use the higher performing oil. In particular, the improved chemical stability of the later oils, lower moisture absorbtion, reduced acidification would all be beneficial in a marine enviroment. I'm happy with my decision to follow their advice.
vyv_cox
Well-Known Member
Improved chemical stability is a high temperature property, not applicable in a yacht auxiliary. Lower moisture absorption simply means that the water will instead be free in the sump. Unless you have some means of draining it off there is little benefit. Reduced acidification means higher TBN or a different technology, desirable in a hot engine but can lead to increased bore wear in a cool running engine.
There are good reasons why oil manufacturers design oils for different duties.
rszemeti
Well-Known Member
Acidification is a particular problem for engines that spend a long time idle. It causes problems in the aeronautical world where planes stand for extended periods of non use, resultign in internal corrosion. I'd rather not have that particular problem in my engine. I find your argument that oil has not improved in the last 30 years amusing, but unconvincing. If Volvo claim their later oil specifications are backwards compatible, better specified and recommend their use, thats good enough for me, but feel free to continue using the old stuff if you want to, no skin off my nose.