Fully Synthetic Diesel Oils?

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Originally Posted By: bigjl


I have not seen an oil for sale that isn't specced for diesel and petrol engines that I can remember.

Even cheap mineral oils are A3/B3 (Acea)


ACEA light duty specs (A,B) usually if not always go hand in hand. ACEA C can of course be used for either petrol or diesel too. ACEA heavy duty, API and JASO diesel spec oils dont usually have hand in hand petrol specs.
 
I haven't seen any fully synthetic oils solely sold for diesel.
Just some which are for petrol and diesel.


I wanted a diesel fully synthetic to clean out the inside of the motor (since from what I understand diesel oils have more cleaning agents)
 
Originally Posted By: Spetz
I haven't seen any fully synthetic oils solely sold for diesel. Just some which are for petrol and diesel.

That's what you want to use - dual rated oils. You do NOT want to be using a diesel-only oil, since most of those, particularly in your part of the world, will have no gasoline approval and will be completely different from a normal CJ-4 type diesel lube. You don't want to be using a diesel only CF-2, CF type lube in a gasser or "normal" diesel. This is the type of lube you definitely want to avoid. I haven't seen such an oil in synthetic only, either. Maybe Doug or Charlie have, but I certainly haven't.

If you want a sensible synthetic HDEO, I'd stick with a proper dual rated one from Shell, Chevron, Castrol, or Mobil.
 
Originally Posted By: Spetz
I haven't seen any fully synthetic oils solely sold for diesel.
Just some which are for petrol and diesel.


I wanted a diesel fully synthetic to clean out the inside of the motor (since from what I understand diesel oils have more cleaning agents)

You might not be able to get Motorcraft HDEO in Australia, but it does say CJ-4 only, and says "Don't use in gasoline engines with catalytic converters."

However, the second part is only a concern if the engine has an oil burning problem, or is covered by a special warranty.

The oil is very similar from other ConocoPhillips oils that are rated CJ-4/SM.

If you want a synthetic HDEO, having something that says CJ-4/SM is fine.
 
Originally Posted By: artificialist
Originally Posted By: Spetz
I haven't seen any fully synthetic oils solely sold for diesel. Just some which are for petrol and diesel.
I wanted a diesel ………………….


You might not be able to get Motorcraft HDEO in Australia, but it does say CJ-4 only, and says "Don't use in gasoline engines with catalytic converters."

However, the second part is only a concern if the engine has an oil burning problem, or is covered by a special warranty.


If Ford says it’s a concern I would not risk it. Nothing has changed since the Garden of Eden in this respect, if the OEM says do this, who is leading the temptation to do otherwise and with what guarantee ?

Yep is all risk based I know but this thinking still makes me shiver as to why.
 
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Oils that are ACEA E6 and E9 (almost the same as CJ4) are usually also petrol rated due to ash limits of 1.0%. Likewise ACEA E7 (corresponding sometimes to CI4+) are also usually petrol related due to ash contents mostly OTOH ACEA E4 oils have a limit of 2.0% and actual ash levels in the 1.6-1.9% range and aren't petrol rated.
Very few E4 oils are sold in the US, I get mine via Mobil marine distributor. In Australia I know one can get Shell Rimula R6M which is E4/E7, 228.5, EO-M+, and is "synthetic" (very likely Grp. III), ash = 1.9%. It has no petrol rating. Most E4/MB228.5 oils are claimed to be synthetic and are only diesel rated.

Charlie
 
Originally Posted By: Spetz
I haven't seen any fully synthetic oils solely sold for diesel.
Just some which are for petrol and diesel.


I wanted a diesel fully synthetic to clean out the inside of the motor (since from what I understand diesel oils have more cleaning agents)


Petrol or diesel motor?

Castrol Vecton 5w30 CJ4
Castrol Vecton 10w40 LS
BP Vanellus Eco 10w40
 
mobil delvac1 le5w30 & shell t6 0w40 are likely to cover whatever is demanded of it ,not sure about the t6 0w40 since it is a relatively new formulation but the delvac1 I mention definitely will be good where ever you are!
 
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