VOLVO - XC90 V8 oil recommendation engine B8444S

[DS9]

I would.

I mean I do, up to 110*F, when engine manufacturer alow/recommend these practice with particular oil.

 

[zeng]

A5B5 SN/SL would do, with doubtful FE gain.
Considering OP's ambient temp, I would prefer A3B4 for stronger protection.

 

[mrsquigle]

Mobil 1 0w40 is A3B4, but also has the higher viscosity than recommended xw30. By going A3B4 for stronger protection, should I consider staying with 5w30 or would the 0w40 be fine.

The Mobil 1 5w30 is A5/B5 so I would be looking at another manufacturer to supply A3B3 grade.

 

[DS9]

Originally Posted By: mrsquigle
By going A3B4 for stronger protection, should I consider staying with 5w30 or would the 0w40 be fine.

Think that you got an answer.

Originally Posted By: SilverFusion2010


It's rather hot in Australia. Cold cranking isn't really a concern, but high oil temps are very possible. A thicker oil gives more of a buffer compared to a 30 at a given temp. If you just putter around the 30 will be fine, but if you put that V8 to work I'd run a 40 in your climate.


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Personally, I would consider

http://www.liqui-moly.com.au/products/leichtlauf-special-ll-5w-30/
https://pim.liqui-moly.de/pidoc/P000314/1192-SpecialTecLL5W-30-29.0-en.pdf

http://www.liqui-moly.com.au/contact/