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Thank you! Yes, 2023 Fiesta ST. Original colour (Mean Green). One of the final shipments ever to Australia from Cologne, Germany. Epic car.

Totally agree with that. The post I quoted said the journal bearing constantly reverses, and that didn’t sound right to me.

Penrite also has a few 70s: 40-70 https://penriteoil.com.au/products/hpr-50-40-70-mineral 30-70 https://penriteoil.com.au/products/stops-oil-burning-30-70 25W-70 https://penriteoil.com.au/products/hpr-40-25w-70-mineral

???

The 0W-8 cars can run up to 10W-30 in Australia.

However, there are several C3 oils which meet the fuel economy requirements of C2. These are ‘dual-rated’ C2/C3 oils. They have the 3.5+ HTHS requirement for C3 but demonstrate the fuel economy requirements of C2.

So stop using the 0W-20 then.

Most likely the case. It won’t be a semi-syn as we think of a semi-syn.

You can buy it straight from the source https://shoplubricants.vivaenergy.com.au/shop/products/passenger-car-engine-oils/shell-helix-ultra-5w40-sp-5l-910281819 Or from Repco...

I would run either something like ESP 5W-30 or Valvoline Restore and Protect 5W-30. You don’t want a xW-20 in an engine with historical timing chain issues in such a big heavy car.

Try Valvoline Restore and Protect 5W-30. It should stop the burning.

Correct. I was more saying it is possible to burn fuel once it’s outside the combustion chamber.

With direct injection, you can also inject fuel during the exhaust stroke. That’s how diesels perform DPF regeneration (except those with a dedicated injector in the exhaust stream).

The reason the ignition timing is retarded during AWS is so some fuel is burned in the exhaust past the exhaust valves. But the mixture is not enriched like an old school choke – you can’t do that and meet emissions these days.

They don’t run rich during that cold start cycle – they retard the ignition timing significantly and open the throttle wide to heat up the cat as quickly as possible. Because the NA Skyactiv engines use really long 4-2-1 headers, it would otherwise take way too long to heat the cat and the...

In every other country except USA, the Skyactiv non-turbo engines can run anything from 0W-20 to 10W-30 by the book, and plenty of people in Australia run 5W-40s even with no problem. I run a 5W-30 in these at a minimum.

Ranger PHEV exists in Europe and Australia, so could happen in USA one day. It gets the new 2.3 EcoBoost, 10R80 MHT and a battery you can externally charge. It’s way too overpriced in Australia but having driven one it goes well! Aussies prefer the 3.0L V6 diesel though.

The engine is assembled in Spring Hill, Tennessee.

Any full-synth 5W-30 with API SQ. These engines aren’t picky, but I wouldn’t run a 5W-20.

5W-20 and 0W-20 are effectively the same viscosity at operating temperature. There’s no benefit in 5W-20, in fact sometimes 5W-20 oils are lower quality than 0W-20 oils. Just use 5W-30 like the rest of the world does. 0W-20 is for American CAFE regulations and nothing else.