Hi. I have been driving Toyota diesels for many years and I have used GC 0w-30 Acea C2/C3
oil. Now Castrol has changed their formula and that oil no longer qualifies as Acea C2 oil.
So for warranty reasons I can´t use it anymore.
So.. what I have been wondering: Toyota diesel calls for C2 oil (HTHS 2,9->)
Volkswagen specs for diesel call for C3 (HTHS 3,5->).
How much does low HTHS value affect on wear, and is there significant benefits
for going lighter 0w-30 oil? Ie. Motul eco-clean 0w-30 (Acea C2, HTHS 2.9 viscosity at 40C 49.3)
oil. Now Castrol has changed their formula and that oil no longer qualifies as Acea C2 oil.
So for warranty reasons I can´t use it anymore.
So.. what I have been wondering: Toyota diesel calls for C2 oil (HTHS 2,9->)
Volkswagen specs for diesel call for C3 (HTHS 3,5->).
How much does low HTHS value affect on wear, and is there significant benefits
for going lighter 0w-30 oil? Ie. Motul eco-clean 0w-30 (Acea C2, HTHS 2.9 viscosity at 40C 49.3)
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