- - motor oil
(https://atvconnection.com/forums/racing-competition/307858-motor-oil.html)
Dano_Turner
02-28-2009 12:31 PM
motor oil
do i have to put polaris motor oil in a 4 stroke 425 magnum ,if not what do i need to use
TLC
04-01-2009 09:15 AM
Anything 0w-40 preferably Full synthetic.
BioWare
04-24-2009 07:26 AM
Originally Posted by TLC
(Post 2769827)
Anything 0w-40 preferably Full synthetic.
:iagree:I use Mobil 1 MX4T
07bloomfieldb
04-24-2009 04:04 PM
Why does it need 0-40? What's wrong with 10-40?
the green kow
05-03-2009 02:52 PM
wheres the photo ?:huh:
irnieracing
01-06-2010 01:25 AM
Originally Posted by 07bloomfieldb
(Post 2783786)
Why does it need 0-40? What's wrong with 10-40?
Nothing is wrong with using 10w40. The initial viscosity (measured at 40'c) is just a little thicker with the 10w vs 0w. The second number is most important. A 0w-40 and 10w-40 both have 40 weight operating temperature viscosity. The ow is thinner in ambient temperature, which can pour in lower temperatures. For summer, I recommend 10w40 because it is stronger for thermal breakdown. 10w40 is less volatile then ow40. Will give better protection when hot outside. However, if you are using a true chemically derived synthetic motor oil such as AMSOIL, both will work great. You can even mix the two!
