Hi.Looking to switch to the Mystik 15w50 because my 03’ Cummins ISX15 is getting up there in miles and I want a heavier oil to keep the oil pressure up and consumption down as it wears.Is that oil a good choice?
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Lowest I’ve seen is 16 but almost always 19-20psi at idle.Emissions fell off on a real bumpy dirt road.Truck is an 03’.Is the oil pressure low? Cummins want's to see 15psi or higher at hot idle and 35 to 40 psi when rev'ed up.
That Mystik oil is only CI Plus rated which is an older spec. I would choose a CJ or CK oil for your emissions controlled rig.
Sounds ok to me.Lowest I’ve seen is 16 but almost always 19-20psi at idle.Emissions fell off on a real bumpy dirt road.Truck is an 03’.
‘03 that isn’t emission controlled, other than possibly EGR(?) CI-4+ is plenty good enough, and Mystik makes some good HDEO.Is the oil pressure low? Cummins want's to see 15psi or higher at hot idle and 35 to 40 psi when rev'ed up.
That Mystik oil is only CI Plus rated which is an older spec. I would choose a CJ or CK oil for your emissions controlled rig.
I say mine was stolen...Lowest I’ve seen is 16 but almost always 19-20psi at idle.Emissions fell off on a real bumpy dirt road.Truck is an 03’.
currently running the 15w40 JT8 in my 2012 Ram Cummins. First fill and no signs of issues. It will be a while before I UOA with winter upon us, but my first impression is this is a good oil and is reasonably priced IMO.Hi.Looking to switch to the Mystik 15w50 because my 03’ Cummins ISX15 is getting up there in miles and I want a heavier oil to keep the oil pressure up and consumption down as it wears.Is that oil a good choice?
Which, of course, you meant citgo.Of course it's good, has all the certifications and is used often in the agriculture industry among others.
Mystik is a Chevron brand
Not sure where the OP is buying it, but I bet a 5 gallon pail of JT-8 isn’t a lot more than 5 quarts of Red Line!a decent oil for a good price, many motor cycle owners like. in my lo mile 50+ thou loose audi TT tuned 1.8T i see higher vacuum + less consumption with Redlines 15-50 real synthetic, but only 4.25 qts so cost is not bad!!
$90 a pail.Not sure where the OP is buying it, but I bet a 5 gallon pail of JT-8 isn’t a lot more than 5 quarts of Red Line!
ugh ... yes ...Which, of course, you meant citgo.
I wasn’t too far off-$90 a pail.
Beautiful truckI run it in my 2019 Pete, I have 160k on it so far and it’s been doing great! This is a Glider Kit with a C15. View attachment 193875