Oil Weight (it's really hot here!)
#1
Oil Weight (it's really hot here!)
Ok, so we hit 115 F yesterday in Scottsdale AZ. My freshly built GPR engine was running at 11 psi at idle in Drive when I exited the interstate after driving for about 30 minutes. I'm running 10w/40 and wondering if I should go to a more viscous oil. Thoughts?
#4
#5
#6
Sorry, I was off on my recollection. Here is the quote from the 2003 Disco Owner's Manual (page 229):
Engine oil temperature ranges
5W/30 will protect from -22ºF (-30ºC) to 95ºF (35ºC).
5W/40 will protect from -22ºF (-30ºC) to 122ºF (50ºC).
10W/40 will protect from 14ºF (-10ºC) to 122ºF (50ºC).5W/40 will protect from -22ºF (-30ºC) to 122ºF (50ºC).
#9
You're the one that has to drive it. If it makes you feel better running a higher weight then run it. Plus if you have an oil gauge which I'm assuming you do, then give 20w50 a try and if you don't like your numbers then change back.
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