15 40 wight oil
Use the manufacture recommended weight and switch to a High Mileage oil.
I recommend a high mileage oil such as Pennzoil High Mileage in the weight the manufacture of the vehicle recommends.
Any major brand High Mileage oil in the correct weight.
SAE 5w20 High Mileage oil any major brand. If it is burning oil then use SAE 5w30 High Mileage.
Stick with the weight recommended by Nissan but switch to a High Mileage oil in that weight. Any major brand of your choice.
Any major brand SAE 10w30 or High Mileage oil if the engine is high mileage. Use API service SL or SJ.
Any name brand high mileage oil of the correct weight.
Use a High Mileage oil in the exact weight the manufacture of your vehicle recommends.
The manufacturer recommends that you use 10W-30 weight oil. 10 W-40 weight oil can be used in high mileage engines.
SAE 5w30 is the correct weight oil. If the vehicle has over 100,000 miles use a High Mileage oil.
SAE 10w30 any major brand. If you have over 100,000 miles on this truck I recommend a High Mileage blend.
Use the exact weight that is listed in your owners manual and nothing else. It can be synthetic, conventional, or high mileage.