Heading to mountains, 15W-40 T5 oil OK?
#1
Heading to mountains, 15W-40 T5 oil OK?
Hey guys im heading up to the mountains and it's going to get ~18deg F in the lowest at night. Probably 20-25 in the morning.
I am running Rotella T5 15W-40 because I live in a warm climate. Only going to be in the mountains for a couple days. Should I change the oil to a thinner viscosity?
Thanks,
I am running Rotella T5 15W-40 because I live in a warm climate. Only going to be in the mountains for a couple days. Should I change the oil to a thinner viscosity?
Thanks,
#8
This chart only shows the oil's rated temp ranges, meaning the temperatures where they are inside their rated weight. It doesn't take into account each individual manufacturer's engine tolerances.
I still say that 15w40 is the perfect weight for warmer climates, but I won't use it under 20* (for extended periods) because of the clattering I've heard my engine make with 15w40 under that temp.
I still say that 15w40 is the perfect weight for warmer climates, but I won't use it under 20* (for extended periods) because of the clattering I've heard my engine make with 15w40 under that temp.
#10
I'm glad there is finally an oil thread! This is valuable information. Nothing like this has ever been discussed before, especially on the internet. *(runs, ducks, and hides)*
I kid. I prefer 5w/40 myself. Rotella T6. 15w/40 is fine, but I just don't like it in sub freezing climates. Cheers!
I kid. I prefer 5w/40 myself. Rotella T6. 15w/40 is fine, but I just don't like it in sub freezing climates. Cheers!
Last edited by dtmbinb; 03-16-2018 at 07:45 PM.