I’ve used this one in Oz a bit, very well priced here, one jug used and two more lined up and ready to go. I did a 5k mile (8000 km) OCI without issue. All the GTX UltraClean oils are semi-synthetic. The one here that is always on sale and that most use is the 15W40 that is rated API SN/CF and Euro A3/B3.
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