The 2025 Ram 2500 6.7L Cummins turbo diesel requires the correct oil type, oil capacity, and oil filter for reliable performance and long-term engine protection. This guide includes recommended products and updated specifications for this model year.
The 2025 Ram 2500 6.7L Cummins turbo diesel has an oil capacity of 12 quarts (11.4 litres) with filter, and Ram recommends a high-quality 10W-30 full synthetic motor oil. We have listed our recommended AMSOIL oil and filter options below.
The information below is subject to change so be sure to visit our Product Lookup Guide to see the most current oil and filter recommendations for your vehicle.
Looking for other model years? See:
The 2025 Ram 2500 6.7L Cummins turbo diesel has an oil capacity of 12 quarts (11.4 litres) with filter, and Ram recommends a high-quality 10W-30 full synthetic motor oil. We have listed our recommended AMSOIL oil and filter options below.
The information below is subject to change so be sure to visit our Product Lookup Guide to see the most current oil and filter recommendations for your vehicle.
Looking for other model years? See:
Specifications |
Details |
Year |
2025 |
Make |
Ram |
Model |
2500 |
Engine |
6.7L Turbo Diesel |
Oil Type |
|
Oil Capacity |
12 quarts (11.4 litres) |
Oil Filter |
Recommended Synthetic Oil
 | AMSOIL Signature Series 10W-30 100% Synthetic Max-Duty Diesel Oil For the 2025 Ram 2500 6.7L Cummins Turbo Diesel, we recommend AMSOIL Signature Series 10W-30 synthetic diesel oil. This premium heavy-duty diesel oil is engineered to provide outstanding protection against wear, soot, heat and turbocharger deposits in hard-working diesel pickup trucks. Its advanced synthetic formula helps resist oil breakdown under heavy towing, hauling and high-temperature conditions while supporting long engine life and excellent cold-weather performance. View details > |
Recommended AMSOIL Oil Filter
 | AMSOIL BMK34 Bypass Oil Filtration System The AMSOIL BMK34 Bypass Oil Filtration System delivers advanced oil filtration and extended engine protection for your 2025 Ram 2500 6.7L Cummins Turbo Diesel. Designed to remove extremely small contaminants that full-flow filters can miss, the BMK34 helps reduce engine wear, supports cleaner oil and provides added protection for turbochargers and high-performance diesel engines. When paired with AMSOIL Signature Series synthetic diesel oil, this bypass system can help maximize engine durability and extend oil service life in demanding towing, hauling and severe-duty conditions. View details > |
Where to Buy
1. Order Online – Fast, Free Delivery
Order online using the links above and receive your products in 3 business days or less. Free delivery is available on orders over $100 ($130 in Canada).
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Order online using the links above and receive your products in 3 business days or less. Free delivery is available on orders over $100 ($130 in Canada).
2. Become a Preferred Customer – Save 25%
Preferred Customers save an average of 25%, earn points on purchases, receive exclusive promotions, and more. Simply add a Preferred Customer membership to your cart when ordering to receive immediate savings on your AMSOIL products.