The 2017 Ram 1500 5.7 V8 owner often asks about the recommended oil type for daily driving and towing. Using the correct viscosity and certification helps protect the Hemi engine and supports long term reliability.
This guide outlines the factory specifications, common upgrade paths, and practical tips for choosing the right oil in different climates and usage scenarios.
| Specification | Value | Notes |
|---|---|---|
| Engine | 5.7L HEMI V8 | NAVSTAR and late models | NAVSTAR platform
| Factory Oil Capacity | 6.8 qt with filter | Approximate, may vary slightly by year |
| Recommended Viscosity | 5W-20 | Meets fuel economy and warranty requirements |
| API Service Category | SN or SM | SN preferred for better deposit and wear protection |
| Dexos Certification | Dexos1 Gen2 | Recommended for dealer fill and long term protection |
| Synthetic Blend Option | 5W-20 synthetic blend | Improves high temp stability and extends change intervals |
Understanding 5W-20 Factory Requirements
For most 2017 Ram 1500 5.7 owners, the simplest and safest choice is a 5W-20 engine oil that matches original equipment standards. This viscosity provides quick cold starts protection, reduces pump drag, and supports the variable displacement system on the Hemi.
Using a 5W-20 that carries Dexos1 Gen2 approval ensures compatibility with the timing chain, oil cooler, and catalytic converter. Aftermarket filters and oils labeled for GM and Chrysler applications typically cover this requirement.
Drivers in hotter regions may consider a full synthetic 5W-20 to maintain stable film strength under sustained loads. Those in colder climates benefit from the pour point characteristics of synthetic base stocks for easier winter starting.
Performance and Towing Benefits
When towing a trailer or hauling a payload, the 5.7 HEMI works harder and generates more heat. A high quality 5W-20 synthetic oil with shear resistant additives helps sustain rated horsepower and torque without excessive viscosity breakdown.
Proper oil selection contributes to consistent fuel economy numbers and smoother power delivery during hill climbs. Keeping the oil at the correct level and changing at severe service intervals extends the life of the intake cam phasers and valvetrain.
For serious towing, some owners choose a 5W-30 for slightly thicker protection at operating temperature, though this should be verified with warranty and dealer guidance.
Severe Service Considerations
Short Trip Driving and Stop and Go
Frequent short trips prevent the oil from reaching full temperature, leading to moisture and fuel dilution. Using a premium synthetic 5W-20 and changing oil more often than the standard schedule reduces sludge risk.
Towing, Off Road, and Extreme Temperatures
Regular towing, off road use, or operation in desert heat calls for severe service intervals. Upgrading to a diesel rated oil or a heavy duty synthetic blend can protect against oxidation and thermal breakdown.
Oil Filter and Drain Practices
Always replace the oil filter with a quality OEM or aftermarket unit designed for the 5.7 HEMI. A high efficiency filter captures wear particles and protects the oil pump and bearings between changes.
Ensure the oil drain plug is tightened to factory torque and check for leaks after the first few startups. Recheck oil level after the engine cools to the correct mark on the dipstick, adding small amounts as needed.
Key Takeaways for Long Term Care
- Use factory recommended 5W-20 oil with Dexos1 Gen2 certification
- Choose a reputable brand and Mopar or equivalent oil filter
- Check oil level monthly and before long trips, especially when towing
- Short trip drivers should consider more frequent oil changes
- Verify warranty requirements if the vehicle is still under coverage
FAQ
Reader questions
Can I use 10W-30 instead of 5W-20 in my 2017 Ram 1500 5.7 engine?
It is not recommended. The factory specification is 5W-20 for proper fuel economy and warranty coverage. Using 10W-30 can affect variable valve timing performance and may cause increased wear in cold conditions.
Is it okay to switch to a synthetic blend from conventional oil?
Yes, synthetic blend 5W-20 is a suitable upgrade for the 2017 Ram 1500 5.7. It offers better high temperature stability and longevity while remaining compatible with the engine and emissions components.
What oil do I need if I frequently tow over 5000 pounds?
A premium synthetic 5W-20 with Dexos1 Gen2 certification is ideal. For extreme towing in hot climates, discuss with your dealer about a heavier duty formulation or extended change intervals. Follow the severe service schedule, typically every 5000 to 7500 miles, using a high quality synthetic 5W-20. Shorter intervals are advised for frequent short trips, dusty conditions, or sustained towing.