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Doc's Diesel

4.5 (123)

Doc's Diesel 15W-40 Full Synthetic Heavy-Duty Diesel Oil

Name: Doc's Diesel Doc's Diesel 15W-40 Full Synthetic Heavy-Duty Diesel Oil - Doc's Diesel 15W-40 Full Synthetic Heavy-Duty Diesel Oil
Brand: Doc's Diesel
SKU: 52679872184684
Price: 37.99 USD
Availability: InStock
Rating: 4.6748 (98 reviews)

4.5 (1,234)

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$37.99

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$37.99

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Black

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Description

Doc's Diesel Engine Oil: Powered by Hot Shot's Secret the 15W-40 Full Synthetic Heavy Duty Diesel Engine Oil is a CK-4 specification additive package built with synthetic group III base oils, and contains the patented FR3 Nano Technology to...

Reviews

4.7

123 ratings

Awesome products

I've been using Doc's for all my maintenance supplies for several years. Always on time, great customer service Highly recommend all products

Boot's · 9 days ago

Been using docs for all my truck needs. Very happy with the results and the fast shipping.

Scott · 8 days ago

Great products!

First time trying Doc’s Diesel and I am very pleased. Have heard nothing but great things. Switch my 2014 2500 6.7L with 258k on her and she is very happy.

Customer · April 22, 2026

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Doc's Diesel

4.7 (9.2K)

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Reviews

4.7

123 ratings

Awesome products

I've been using Doc's for all my maintenance supplies for several years. Always on time, great customer service Highly recommend all products

Boot's · 9 days ago

Been using docs for all my truck needs. Very happy with the results and the fast shipping.

Scott · 8 days ago

Great products!

First time trying Doc’s Diesel and I am very pleased. Have heard nothing but great things. Switch my 2014 2500 6.7L with 258k on her and she is very happy.

Customer · April 22, 2026