I use 10W-30 of a good American brand oil all year round. I've done this for almost 40 years in many different vehicles, so I see no reason to change.
20w50
realease the old oil and then use the oil that you want to use make shure to use thin oil in the colder monthes and thick in the summer
In the summer I use 10w-30 in my '89 Sierra in the summer I use 10w-40
Yes
30W for summer
In the summer you may want to use a oil that is a little thicher 10w-40 and in the winter use 5w-30
use quaker state synthetic oil. 5w30 for summer ,10w30 for winter
Use 30 SAE oil in both the engine (summer) and the transmission.
4.2 quarts of any engine oil 10w30 or 10w40 for summer.
5W30 in winter time. 10w30 in the summer time. Gastrol GTX OIL
In moderate temperatures, as in a lawnmower used in summer, most will use straight 30W oil.
summer: 10W30 winter: 5W30