what weight oil for 6.5 engine
You can use any SAE certified engine oil in your Nissan. The engine oil should be a 10W-30 weight engine oil.
If you accidentally did that then drain the engine oil out immediately and pour in the correct weight oil.
the weight of oil viscosity weight is strictly related to temperature of operation. there is no set rules for it since anew engine will benefit from less dense oil an old wore out engine will not.
It is the weight of the multi-vicosity oil. The 10 is the weight of the oil when cold. The W stands for Winter. The 40 is the weight of the oil when it gets hot.
yes, it will affect the transmission.
about the only affect this will have , is that it will leak oil when engine is running
5w20 weight.
40 weight
What kind of engine? lawnmower, car.
No, use only the weight oil as recommended by the manufacture.
My (I still have it) GVW is 3927. I have an in-line 292 engine. The engine weight will affect the weight. A safe number is 4000 lbs.