No it is far too heave for an air cooled engine i recommend 10W 30 or just a regular 4 stroke lawnmower oil
No, absolutely not. It is far to heavy for an air cooled lawn mower engine. Use 10w30 or 30 weight in the summer. I recommend synthetic for an air cooled engine.
Yes
30 weight oil can use car oil or lawnmower oil same oil
Yes 10w30 is a good oil for snowblower or lawnmower.
The CT90 takes regular engine oil, the same that is in your car. it does not take any different oil for the gearbox as it is all lubricated by the engine oil. anything between 20w-50w is fine and multi-grade is also fine, at colder temperatures you should use denser oil, about 10w-20w.
20w/50
20W-50 Synthetic
yes you can
If the wrong oil is used in a lawnmower, do not start it. Simply drain the oil as completely as possible and fill with the proper oil.
You must use the oil that the manufacturer recommends in the handbook.
NO, not in any lawnmower made in the last 40 years. Use SAE 30 or SAE 10W30 detergent oil.
The 2002 2.7l calls for 5-30, but in 2004 Chrysler went to 5-20w oil. I use the 5-20w mobil 1 synthetic oil in my 2002 with no problems. I go 5000 miles on an oil change. 5-20w will help the fuel economy a little, too.