Barthmobile Portal
Oil change
07-06-2018, 11:28 AM
Richard_MuiseOil change
We have about four thousand miles on our oil and we are halfway through our crosscountry trip. Should I change the oil soon? Can it wait until I get home? Thanks.
R.P.Muise 1994 Breakaway/Cummins 5.9/Allison transmission/Spartan Chassis
07-06-2018, 02:10 PM
ccctimtationSyn oil? If so probably no problem. Not super science but a bit of old school crude paper chromatography analysis, put a drop on a flattened paper towel and let it sit for several hours to wick out several inches. If it is nearly uniform in color from center to edge the detergent is still doing its job and all is "probably" okay. There will be a darker spot where you put the drip. A drip from the stick will suffice. When the detergent fails it generally indicates breakdown of the anti-oxidant. WWYPFI
Tim
07-06-2018, 02:22 PM
MWrenchI routinely run 8K to 10K miles between changes, been doing this for 250K miles. Using regular oils. Diesels engine oil change intervals do not have to be as often as gasoline engines.
Ed
94 30' Breakaway #3864
30-BS-6B side entry
New Cummins 5.9L, 375+ HP
Allison 6 speed
Spartan chassis
K9DVC
Tankless water heater
07-06-2018, 11:47 PM
Richard_MuiseI use chevron because the bus company that does my maintenance uses it for their fleet.
R.P.Muise 1994 Breakaway/Cummins 5.9/Allison transmission/Spartan Chassis
07-07-2018, 12:09 AM
RustyOil is under very little stress when the engine is at temp and running under load.
Modern additives and ULSD make the oil pretty robust. I do prefer Mobil Delvac, Shell Rotella T, or Kendall Super D.
Rusty
"StaRV II"'94 28' Breakaway: MilSpec AMG 6.5L TD 230HP
Nelson and Chester, not-spoiled Golden Retrievers
Sometimes I think we're alone in the universe, and sometimes I think we're not.
In either case the idea is quite staggering. - Arthur C. Clarke
It was a woman who drove me to drink, and I've been searching thirty years to find her and thank her - W. C. Fields
07-07-2018, 09:24 AM
Jim and TereRusty, do you prefer Shell Rotella T to Mobil 1 for a gasoline engine?
Jim
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1985 Regal 29' Chevy 454 P32 8411 3172 29FP3B Gear Vendor 6 Speed Tranny |
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07-07-2018, 10:22 PM
RustyI use Mobil 1 or Kendall synthetic in gaso engines, because they're formulated for them.
Rusty
"StaRV II"'94 28' Breakaway: MilSpec AMG 6.5L TD 230HP
Nelson and Chester, not-spoiled Golden Retrievers
Sometimes I think we're alone in the universe, and sometimes I think we're not.
In either case the idea is quite staggering. - Arthur C. Clarke
It was a woman who drove me to drink, and I've been searching thirty years to find her and thank her - W. C. Fields
07-08-2018, 10:42 AM
Kevinquote:
Originally posted by Rusty:
... Shell Rotella T...
Rusty, I know you say synthetic is a waste of money. Shell Rotella T6 costs less than $20. per gallon with the rebates and store incentives. I have been using Shell Rotella T6 synthetic in my Caterpillar 3208 for over 5 years now. I use T6 in every liquid cooled engine I own. I have used T6 since it first came out several years ago. Our member here, Tom K suggest changing oil every 200 hours in the 3208 Cat.
If I recall correctly, Rusty said "oil is easier to replace than metal."
quote:
Originally posted by Rusty:
Oil is under very little stress when the engine is at temp and running under load.
Modern additives and ULSD make the oil pretty robust. I do prefer Mobil Delvac, Shell Rotella T, or Kendall Super D.
I will continue to run Mobil Delvac. I buy in the 5 gallon pails and change every year. With the rebate I get it for $5 a gallon.
DBarth took 15 quarts so less than 4 gallons. I am sure my Monarch with the 8.3 will take more.
Dana & Lynn
1997 38ft Monarch front entry
Spartan Mountain Master Chassis
Cummins 8.3 325hp
Allison MD-3060 6 speed
22.5 11R
Cummins Factory Exhaust Brake
8000 watt Quiet Diesel Generator
9608-M0022-38MI-4C
Christened Midnight
1972 22ft
72081169MC22C
Christened Camp Barth
07-08-2018, 01:44 PM
Steve VWModern engines with roller cams use modern oils. Unfortunately the modern oils do not have the EP additives they used in the past.
Older engines with flat tappet cams need those EP additives to control cam wear. I used Rotella in my old 454 for that reason. The new 454 I installed has a roller cam so I use synthetic 10W-30.
9708-M0037-37MM-01
"98" Monarch 37
Spartan MM, 6 spd Allison
Cummins 8.3 325+ hp