Doc's Diesel 10W-30 Full Synthetic Heavy-Duty Diesel Oil 55 Gallon Drum
Doc's Diesel Engine Oil:
Doc's Diesel 10W-30 Full Synthetic Heavy Duty Diesel Oil is built for hard-working diesel engines, whether you’re operating a modern emissions-compliant fleet or keeping an older workhorse on the job. Engineered for outstanding wear protection, it delivers performance and reliability even in the harshest conditions. With strong viscosity retention and oxidation resistance, it helps minimize oil consumption while maximizing engine durability and uptime.
Product Details:
- Maximized Engine Protection & Longevity - Advanced additive system protects critical components and resists thermal breakdown, even under high-load, high-heat operating conditions
- Extreme Temperature Protection - Excellent low-temperature pumpability ensures fast lubrication and engine protection during cold starts and harsh weather
- Proven Clean Performance - Enhanced oxidation and thermal stability help reduce sludge and deposits, keeping your engine running cleaner for longer
- Engineered for Modern Emissions Standards - Formulated with low ash chemistry for DPF and EGR systems, this oil meets API CK-4 and 2017 GHG standards to cut emissions and boost fuel economy
- Doc's 10W-30 Full Synthetic Diesel Oil Safety Sheet
- Doc's Auto Parts all have an OEM design, fit, and function that meet or exceed OEM Requirements
Fitment:
Vehicle Fitment:
- 2003-2018 Ram 5.9L/6.7L Cummins 2500HD, 3500HD, 4500HD, 5500HD
- 1994-2010 Ford 6.0L/6.4L/7.3L Powerstroke
Doc's Part Number:
DOCS10W30-55G
Oil Capacity:
- 6.7L Cummins: 3.012 Gallons (12 Quarts)
- 6.7L Powerstroke: 3.25 Gallons (13 Quarts)
- 6.6L Duramax: 2.5 Gallons (10 Quarts)
- 3.0L Duramax: 1.75 Gallons (7 Quarts)
- 3.0L EcoDiesel: 2.65 Gallons (10.6 Quarts)
Change Interval:
Above all recommendations, change according to your vehicle’s manufacturer's warranty.
- Standard Service (normal duty): Every 10,000 – 15,000 miles maximum, or as recommended by OEM
- Severe Service (heavy loads, towing, dusty or extreme conditions): Every 7,500 – 10,000 miles maximum
- Off-Road / Agricultural / Equipment: Follow manufacturer guidelines (typically 250 – 500 hours)
Original: $1,304.99
-70%$1,304.99
$391.50









Description
Doc's Diesel Engine Oil:
Doc's Diesel 10W-30 Full Synthetic Heavy Duty Diesel Oil is built for hard-working diesel engines, whether you’re operating a modern emissions-compliant fleet or keeping an older workhorse on the job. Engineered for outstanding wear protection, it delivers performance and reliability even in the harshest conditions. With strong viscosity retention and oxidation resistance, it helps minimize oil consumption while maximizing engine durability and uptime.
Product Details:
- Maximized Engine Protection & Longevity - Advanced additive system protects critical components and resists thermal breakdown, even under high-load, high-heat operating conditions
- Extreme Temperature Protection - Excellent low-temperature pumpability ensures fast lubrication and engine protection during cold starts and harsh weather
- Proven Clean Performance - Enhanced oxidation and thermal stability help reduce sludge and deposits, keeping your engine running cleaner for longer
- Engineered for Modern Emissions Standards - Formulated with low ash chemistry for DPF and EGR systems, this oil meets API CK-4 and 2017 GHG standards to cut emissions and boost fuel economy
- Doc's 10W-30 Full Synthetic Diesel Oil Safety Sheet
- Doc's Auto Parts all have an OEM design, fit, and function that meet or exceed OEM Requirements
Fitment:
Vehicle Fitment:
- 2003-2018 Ram 5.9L/6.7L Cummins 2500HD, 3500HD, 4500HD, 5500HD
- 1994-2010 Ford 6.0L/6.4L/7.3L Powerstroke
Doc's Part Number:
DOCS10W30-55G
Oil Capacity:
- 6.7L Cummins: 3.012 Gallons (12 Quarts)
- 6.7L Powerstroke: 3.25 Gallons (13 Quarts)
- 6.6L Duramax: 2.5 Gallons (10 Quarts)
- 3.0L Duramax: 1.75 Gallons (7 Quarts)
- 3.0L EcoDiesel: 2.65 Gallons (10.6 Quarts)
Change Interval:
Above all recommendations, change according to your vehicle’s manufacturer's warranty.
- Standard Service (normal duty): Every 10,000 – 15,000 miles maximum, or as recommended by OEM
- Severe Service (heavy loads, towing, dusty or extreme conditions): Every 7,500 – 10,000 miles maximum
- Off-Road / Agricultural / Equipment: Follow manufacturer guidelines (typically 250 – 500 hours)


















