Another oil for Toyota's 1HD-T engine:
An oil analysis done on the delvac1 after 5k km showed higher viscosity- over the 125% max- think this is due to soot build up. Even a synth oil can't handle so much soot from poor quality fuel. Think it would be better to change more often, as in every 5k km.

I've switched from Delvac 1 to Conoco's PowerD 15w40. Price aside, the Power D carries an API CI4 plus/ SL, DHD-1, JASO DH-1, ACEA E3/E5 rating. Plan to test the oil after 3-4k km.

Anyone interested in buying my delvac 1?