No. It has to do with how thick the oil is (viscosity) at different temperatures.
No, 30 wt or 30 weight oil is a non-detergent oil whereas SAE30 is a detergent oil. Read the label on each container. Any motor oil which is non-detergent blend will be clearly marked as such. Conversely, any oil which is not specifically marked as non-detergent is by default, a detergent blend. Most non-detergent oils will be marked as ND30.
30 weight non detergent.
It has to be a non detergent oil
Detergent
Detergent! Do not use non-detergent oil.
SAE 30 weight in the engine and 30 weight non detergent oil in the pump.
30 Weight Non-detergent Oil
No, it is still possible to but non-detergent oil.No, it is still possible to but non-detergent oil.
Most small engines use 30 weight non-detergent type.
30 weight non detergent oil. 8 gallons
30 weight non detergent oil. 8 gallons
NO, in fact just the opposite is true. Most synthetics are detergent blends. You can however buy a non detergent synthetics.