Dark differential lube
Being the good owner that I am---I took the Ram to a shop for its oil change. I've had LOF done there before with no issues. This time, they said that the rear differential gear oil was "dark," and ...
Forum Discussion
6.6L DURAMAX MAINTENANCE SCHEDULE, SERVICE INTERVALS
Replace engine oil & oil filter
10,000 miles or when "change engine oil" message is displayed by the oil life monitoring system
Replace fuel filter
2001 - 2010
15,000 miles
2011 - 2016
22,500 miles or when "change fuel filter" message is displayed
Replace engine air filter
Check filter condition every oil change and replace as necessary; replace at 45,000 miles regardless
Flush engine cooling system
150,000 miles
Replace automatic transmission fluid & filters
2001 - 2011
50,000 miles (normal conditions)
25,000 miles (severe duty conditions)
2012 - 2016
Replace external filter at 45,000 mile intervals and full service at 97,500 miles under normal conditions
Perform full service (new fluid, ext & int filter) every 45,000 miles under severe duty conditions
Replace manual transmission fluid
GM advises that the ZF S6-650 6 speed manual transmission does not require service. To maintain shift quality and promote transmission life, consider replacing fluid at 60,000 mile intervals, especially if usage meets any of the severe duty conditions.
Replace transfer case fluid
2001 - 2011
50,000 miles
2012 - 2016
97,500 miles (normal conditions)
22,500 miles (severe duty conditions)
Replace front differential fluid (4x4)
Service interval not provided by GM, routine service may promote longevity. Fluid level should be checked periodically. Drain and replace differential fluid immediately if the axle is submerged in water.
Replace rear differential fluid
Service interval not provided by GM, routine service may promote longevity. Fluid level should be checked periodically. Drain and replace differential flu
GM doesn’t even give a service interval on diff gear oil... 15K is just someone spending money for no good reason.. Use Amsol synthetic severe duty gear lube and drop that 15K ****
Replace engine oil & oil filter
10,000 miles or when "change engine oil" message is displayed by the oil life monitoring system
Replace fuel filter
2001 - 2010
15,000 miles
2011 - 2016
22,500 miles or when "change fuel filter" message is displayed
Replace engine air filter
Check filter condition every oil change and replace as necessary; replace at 45,000 miles regardless
Flush engine cooling system
150,000 miles
Replace automatic transmission fluid & filters
2001 - 2011
50,000 miles (normal conditions)
25,000 miles (severe duty conditions)
2012 - 2016
Replace external filter at 45,000 mile intervals and full service at 97,500 miles under normal conditions
Perform full service (new fluid, ext & int filter) every 45,000 miles under severe duty conditions
Replace manual transmission fluid
GM advises that the ZF S6-650 6 speed manual transmission does not require service. To maintain shift quality and promote transmission life, consider replacing fluid at 60,000 mile intervals, especially if usage meets any of the severe duty conditions.
Replace transfer case fluid
2001 - 2011
50,000 miles
2012 - 2016
97,500 miles (normal conditions)
22,500 miles (severe duty conditions)
Replace front differential fluid (4x4)
Service interval not provided by GM, routine service may promote longevity. Fluid level should be checked periodically. Drain and replace differential fluid immediately if the axle is submerged in water.
Replace rear differential fluid
Service interval not provided by GM, routine service may promote longevity. Fluid level should be checked periodically. Drain and replace differential flu
GM doesn’t even give a service interval on diff gear oil... 15K is just someone spending money for no good reason.. Use Amsol synthetic severe duty gear lube and drop that 15K ****
