Lancia Motor Club

What are your recommendations for brand/type of oil in my 1.3 S3 ?
I am about do an oil change.
The previous Italian owner had the engine rebuilt recently. I am not sure which oil is in there at present.

Kev

I have long used 10/40 semi-synthetic from my local Motor Factor - Comma or some such brand, I see no need to pay twice as much for Castrol!

Always lots of views on this but if you want long life between oil changes and the engine is (young) I recommend Millers nano fully synthetic 10-60 triple ester. A bit pricey but you won't be changing it for years....For older engines annual oil changing and use 20-50 classic oil (comma brand etc). BTW Millers is a UK product!!!

I was told (by a different oil company) that one of the reasons that nano is only used by Millers is that it creates a coating on everything inside the engine which is where the protection comes from. Repeated use over a few changes can cause that to build up such that oilways become restricted. I don't know how true this is but maybe has some validity. Otherwise I agree it is a great oil, I use it in my Fiat Coupe hillclimb car but may change to a different brand next time based on that information.

Never heard that - must be a different definition of nano to get any build up at all!!!! I might ask Millers tech if they have a view other than falling off their chair..(PS I have no connection to Millers or any oil company).

https://www.millersoils.co.uk/nanodrive/#:~:text=In%20engine%20and%20gear%20oils,against%20wear%20and%20maximise%20power.&text=Millers%20Oils%20has%20developed%20a,synergistically%20to%20greatly%20enhance%20performance.

There is no evidence that once a coating of nano particulate is laid down on a metal surface that it continues to accumulate. The esters referred to in Miller's discussion above could/would be formulated to have the propensity to bond with metal, thereby laying down the friction-reducing surface described, but not necessarily to adhere to itself. Ergo once the surface is coated, it would not build up layer upon layer of ester-based nano particulate. Unlike, say, regular motor oils which through, e.g., oxidation over time, contamination, etc., would create deposits and buildup as the petroleum breaks down into its components/dispersants.

Interesting replies on the nano oil from Millers, as I said it is just something I was told as the reason other oil companies don't use it, but based on my own experience I am very happy with it and have paid a lot of money for it fairly regularly. I plan to put it in my Fulvia but was interested in the comment made in relation to repeated use - the inability of nano to build up makes sense though as it might otherwise stick to itself in the container ;D