Altrenative to Delvac MX

[hermit]

Right, we have low sulfur fuels here so I guess not such an issue, but the other add pack benefits presumably are a positive?

hermit

 

[reyjay1]

Yes, definately a positive, as to the straight 40 at low temps, it will be a balancing of trade-offs to resort to that I think, is the engine so tired that all the clearances have opened up that only a thicker oil will relieve so that you can get more life out of it, or is it still not so bad that the right multi-grade will be sufficient to give optimal lubrication with minimal burning (smoke , consumption) that is what it sounds like you are trying to determine at this point.
I wish Doug Hillary was still here to give recomendations as well as he is most familiar with your climate and off the shelf products with much more experience at this.
He may have answered similar questions in the past so you might try searching on that user here.

 

[hermit]

Thanks reyjay, really appreciate your time. Definitely at this stage trying to find the right 15w40 grade. Clearly if the Delvac consumption continues it is not the right one. Interestingly the specs for Delvac MX show a 14.2 cSt at 100c compared to the 15 you mention. Although th eTection is 14.5. Really wish we got Delo 400 over here, the specs are 15.1 so it seems quite meaty! On the VOAs I've looked a, Ursa comes in at 15.2-15.4 (not sure which Ursa it is though). Any mileage in this or is it oversimplifying things to concentrate on this figure? Its a shame about the thread on here re: John Deere 50-plus shearing as it is easy to get here.

Hermit

 

[reyjay1]

Keep in mind the viscosity specs can have a varience of +/- 1 cSt batch to batch from published numbers, which is where VOA come in useful to compare it seems. Just from observing trends on this board it seems the Mobil products tend to come on the thinner side of their grade , Delo's pretty much match specs, and Castrol HD 's tend to stay in grade in general from my limited observations.