It could be.
A diesel engine would use 15w40 a gas engine could use 15w40 or 10w40
Yes, no problem.
The one that the car's manual specifies. This will be different for every car.
What year is this car? I suggest using Pennzoil 10w30.
Check Motor Oil . Or change oil weight, example; if you used 10w30 then used 10w40 and so on.
The oil type that is used for a manual transmission will depend on the car. Most cars will take 10W30 oil.
5w20, 5w30, 10w30, 15w40 etc. It will depend on what the manufacturer recommends. It all depends on the engine,manufacturer's recommendations, type of fuel it uses (gasoline,diesel),climate conditions,etc. Too many variables.
10w30 Conventional is the standard for that year and make.
depending on the climate. you can use 10w30 on every car. so you could be safe by putting in 10w30
only total syntetic oil if is new car and total quartz 7000- 15w40 after 100000km!
in warm weather nothing in cold weather it could be hard to start
SAE 10w30 any major brand