They'll work, but could blow.
Usually theyre pretty weak, as low as 6W, 10W to 20W for factory.
10w-40, 20w-40 & 20w-50 are best grades, Brand which i preffer is "ZIC"
10w 40 or 20w 40 either one
-2w+14+10w=348w=20w=2.5
5W-30
As far as I know 10w -20 hydraulic would mean that it is a 10w that will protect to -20 degrees. So, yes it would be the same except for listing what temperature it would protect down to.
Users Manual recommends 10W-40 but anything up to 20W-50 will also work
Yes, you can use 10W-40 instead of 20W-50, but it may not be ideal for all engines. The numbers indicate the oil's viscosity; 20W-50 is thicker at higher temperatures compared to 10W-40. If your engine requires 20W-50 for optimal protection and performance, using 10W-40 might lead to increased wear and tear, especially in high-temperature conditions. Always consult your vehicle's owner manual for the recommended oil viscosity.
Petrol engines cold climate 5W/30 moderate climate 10W/30 alternate grade 10W/40 hot climate 20W/40.
Oils thicker than 10W-30 include 10W-40 and 20W-50. These oils have a higher viscosity at operating temperatures, making them suitable for high-performance engines or those operating in hotter conditions. The first number (before the "W") indicates the viscosity in cold temperatures, while the second number indicates viscosity at high temperatures. Therefore, both 10W-40 and 20W-50 provide greater thickness compared to 10W-30 at elevated temperatures.
4 stroke oil 20W 50 or 10W 40 doesn't really matter
10W/30 ILSAC GF2 or use SG,SH,SJ 20W/50 or 15W/40