Motor oil type & quantity
I have some questions about what motor oil to use and how much.
First of, what kind. The various books I have recommend 5W30 and 10W30.
The coldest it usually gets around here is 20F (-7C) so I would say, for winters it is best to use 5W30, and in the summer the 10W30. But it's the 2nd number that bears my questions. What would be the difference between 5W30 & 5W40? I know that it will operate as a 30 (or 40) single grade oil when at running temperature, but how will that influence my car?
I was looking at some motor oil websites (Mobil 1, Castrol), and some brands even suggested 15W40 oil.
On a sidenote, the mileage on my car is 130K miles, is that enough for a high mileage oil?
And are there oil brands that are better than others? Or are they all the same basicly?
Secondly, how much oil do I need to have in my car when I want to drain & refill (and change oil filter)?
One website says 4.1 quarts (I think they are US quarts).
But my maintenance guide (in German so hard to understand since I'm Belgian) says only 1.2 liters (1.3 quarts). That seems way too low, but now I'm questioning how much it actually is? (7afe engine)
Thanks for your time & answers,
PS: if a book says "gallons" or "quarts", without stating if it is US or imperial, what is it most likely to be? Would help my Belgian ass alot :-D
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