2018 Ram 1500
Maintenance & specsVERIFIED Jun 15, 2026
The 2018 Ram 1500 takes 5W-20 Synthetic Blend with a total capacity of 7 quarts (filter included). You’ll need a 16mm socket for the drain plug, torqued to 34 Nm. The OEM oil filter is the Mopar 68191349AC, with 5 compatible alternatives listed below. Note: this vehicle has 15 active recalls — check the recalls section below. Below you’ll find complete maintenance specs, fluid capacities, parts, and links to buy what you need.
⚑ QUICK DIY TIPS FOR THE 2018 RAM 1500
- Torque your drain plug to 34 Nm (25 ft-lbs) to avoid leaks or stripped threads.
- Using the OEM filter (Mopar 68191349AC) is recommended for warranty compliance.
- Always use 5W-20 Synthetic Blend as specified by Ram — using the wrong viscosity can void your powertrain warranty.
- Check the maintenance schedule below for your next service interval.
01
Oil & Filter
OilBuy
Viscosity5W-20
Oil typeSynthetic Blend
Capacity (with filter)7 qt
Capacity (w/o filter)6.5 qt
OEM specMS-6395
Filter Options
Mopar68191349ACOEM
BuyK&NHP-2004
BuyBosch3312
BuyMopar04892339ABOEM
BuyMopar68492616AAOEM
BuyMahleOX 1117D
BuyOEM oil filter
Drain Bolt & Hardware
Socket size16 mm
ThreadM14x1.5
Torque spec34 Nm
GasketCrush washer
4th gen DS (5.7L HEMI V8)
02
Fluid Specifications
03
Parts & Specifications
Spark Plugs
TypeIridium
Gap0.044
Quantity4
Change interval100,000 mi
Tires
Size215/55R17
Front pressure33 PSI
Rear pressure33 PSI
Cabin Air Filter
FramCF10285OEM
Buy04
Maintenance Schedule
≈ every 6 months
- ▸Change Engine Oil & Filter
05
Torque Specifications
06
Safety Recalls
1507
Technical Service Bulletins
362Estimated Current Value
Original MSRP
$30,000
Private Party
$9,405–$10,395
Dealer Retail
$10,890–$12,375
Trade-In
$8,415–$9,405
Depreciation
67%
Estimated values assume average condition and mileage for vehicle age.
Source: estimated
Save by doing it yourself
A shop typically charges $70–$140 for this service. Buy the parts and save.
08
Tools & Supplies
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