58 hours on the rebuilt 1958 Detroit 2-53, used weekly in a 1965 Allis Chalmer FDX40-24 forklift.
Detroit 2-53 Shell Rotella T1 40W 58 Hrs
- Thread starter A310
- Start date
Yes, this is the first oil sample. I've considered 15W-40, but haven't tried that yet. Detroit and many others recommend straight weight oils only with a CF2 rating. I plan to run a recently rebuilt Detroit Silver 4-53T on 15W40.
See if it's a better oil compared to Shell Rotella T1. Be testing Shell Rotella T4 and see.
Pour point shows -5.8F (that's the first I've seen the pour point have a decimal) and I know that's not ccs pumpability but if it can pour then it can pump but it's probably very thick at 10fYes, this is the first oil sample. I've considered 15W-40, but haven't tried that yet. Detroit and many others recommend straight weight oils only with a CF2 rating. I plan to run a recently rebuilt Detroit Silver 4-53T on 15W40.
Modern monogrades perform better than old monogrades. I bet shell could have called it 25w-40 with just an inklings worth of polymers. 25w-40's have very similar kv100 and pour points. Motul 25w-40 lists -6f as the pour point.
Yes, very true.
The argument using 15W40 is the shear properties vs the straight weight oils. Oils have come a long way since the inception of Shell T1 SAE40w, so I'm confident that the T4's 5's and 6's from shell should perform well. The argument from Detroit enthusiast and owners is that 15w-40 is simply 15w after it shears. This leads to liner scuffing, bearing wear and the list goes on.
Oil consumption and deposits are also a concern. You can do whatever you want with your engine and money but if it was mine it would get Delo 100 40wt. Pay very close to the sulfated ash content of whatever oil you wish to use. I own a truck with an 8v71 and maintain another piece of equipment with a 4-53. The owner of the 4-53 thought that their bulk 15w40 would be just fine and got to do an overhaul to stop the oil consumption because of it.Yes, very true.
amen to that.
