should we use natural gas and oil
no u should use normal oil
You should use 10W 30 of any good quality oil.
what oil viscosity should i use a gsx 1400
Sure, you CAN use any oil you want, but the question should be SHOULD you? The answer to that is use EXACTLY what your owners manual lists.
any lamp oil.
If it is not burning any oil use 5w30. If it is burning any oil use 10w30.
Common sense. Use the incorrect oil and you will damage the engine.
There are 2 answers that should be done together. Change your oil more often, and use a thicker oil.
olive oil
Synthetic Oil
The 97 Escort should have 5-30 oil.