Sorry but i have more stupid questions
My D4-D corolla 1.4l manual recommends 0w-30 C2 engine oil or 5w-30 of unkown ACEA spec.
Local dealer told me they would service my car with 5w-30 C3 normally.
1. So instead of using 5w-30 C3 with higher HTHS than C2. Can i use ACEA C4 with LOW saps and the same HTHS as C3 ? (possibly increase DPF filter lifespan)
2. In some forum user pointed out the recommanded ACEA spec could be tied to the additive content and damage can occur with wrong acea spec ?
3. Does it make any sense to use 5w-30 instead of 0w-30 if temperature does not drop under -4°F / -20°C ?
4. Does the manufacturers recommended oil spec favor 0.1% decrease in fuel economy over durability?
My D4-D corolla 1.4l manual recommends 0w-30 C2 engine oil or 5w-30 of unkown ACEA spec.
Local dealer told me they would service my car with 5w-30 C3 normally.
1. So instead of using 5w-30 C3 with higher HTHS than C2. Can i use ACEA C4 with LOW saps and the same HTHS as C3 ? (possibly increase DPF filter lifespan)
2. In some forum user pointed out the recommanded ACEA spec could be tied to the additive content and damage can occur with wrong acea spec ?
3. Does it make any sense to use 5w-30 instead of 0w-30 if temperature does not drop under -4°F / -20°C ?
4. Does the manufacturers recommended oil spec favor 0.1% decrease in fuel economy over durability?