2003-2006 RAM 1500 maintenance schedule
Following a regular maintenance schedule is the most important step for keeping your truck running smoothly. It should be your top priority as not only does it increase reliability and improves fuel economy, but it will also make your truck last longer. All of this saves you money on a long run. As with any other vehicle, the maintenance schedule for your RAM depends on the year it was made. Here, you will find all the data needed for performing regular maintenance on your 2003-2006 Dodge Ram 1500.
| Replace engine oil & oil filter
|
15.000 miles (under normal driving conditions)
7.000 miles (under severe driving conditions) |
| Replace fuel filter | 15.000 miles / 12 months |
| Flush engine cooling system | 100.000 miles / 5 years |
| Inspect water pump | 15.000 miles (inspect weep hole for blockage) |
| Replace automatic transmission fluid & filter (48RE gearbox) | 100.000 miles |
| Adjust automatic transmission bands (48RE gearbox) | 100.000 miles |
| Replace manual transmission fluid | 60.000 miles |
| Replace transfer case fluid
|
120.000 miles (under normal driving conditions)
60.000 miles (under severe driving conditions) |
| Replace front differential fluid
(4×4 vehicles) |
15.000 miles (under severe driving conditions)
50.000 miles (under normal driving conditions) |
| Replace rear differential fluid | 15.000 miles (under severe driving conditions)
50.000 miles (under normal driving conditions) |
| Check and adjust valve lash | 150.000 miles |
| FLUID | SPECIFICATION | CAPACITY |
| Engine oil | 15W-40 (outside temperature > 0° F)
5W-40 full synthetic (all outside temperature) |
12.0 qts w/ filter |
| Engine coolant | 50/50 mixture MOPAR 68048953AB antifreeze and distilled water | ~ 6 gallons |
| Automatic transmission fluid | MOPAR ATF+4 automatic transmission fluid | 14 – 17 qts total |
| Manual transmission fluid (6 speed) | MOPAR manual transmission fluid | 4.0 qts |
| Transfer case fluid | MOPAR ATF+4 automatic transmission fluid | 1.25 qts (NV231HD)
2.3 qts (NV241) 3.25 qts (NV241HD) |
| Front differential fluid | SAE 75W-90 GL-5 synthetic gear oil | 2.45 qts |
| Rear differential fluid | SAE 75W-90 or 75W-140 (preferred for towing) GL-5 synthetic gear oil | 2.7 qts (10.5” AMM)
3.8 qts (11.5” AMM) |
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