Doc&
Doc&
Doc&
Doc&

Doc's Diesel THE 5W40 Full Synthetic Heavy Duty Diesel Oil

29 Reviews
Regular price$40.99
/
Size
  • 3rd-Party Tested
  • Free USA Shipping Over $99*
  • In stock, ready to ship
  • Inventory on the way

Doc's Diesel THE 5W40 Full Synthetic Heavy Duty Diesel Oil

Powered by Hot Shot's Secret, THE 5W-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 provide the absolute best level
of protection to your diesel engine.

The FR3 Nano Technology infusion
provides protection, longevity, and performance gains that other
synthetic oils will not allow.

INCREASED EFFICIENCY The blended friction reducing agents provide
an unmatched level of technology that enhances performance, increases
fuel economy and is proven to provide up to 78% less oil consumption
than the specification during the CAT 1N test.

SUPERIOR PROTECTION Protects down to the nano level and resists shearing under the most extreme temperatures. The included additive package has proven to reduce wear up to 71% in Cummins ISM severe service test.

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) 
(Coming Soon) 3.0L Duramax - 1.75 Gallons (7 Quarts)
(Coming Soon) EcoDiesel - 2.65 Gallons (10.6 Quarts)

How much is shipping?

We offer Free Shipping over $99 on all orders within the contiguous United States. Expedited shipping is available for an additional charge. Alaska, Hawaii, and Canada will have shipping fees.

Where does Doc's Diesel Ship to?

We ship to the U.S. and Canada! For Canada orders, any taxes, duties, or customs fees are the responsibility of the buyer.

How long will it take to get my Doc's Diesel Filters?

We handle orders in 1-2 business days (Most of the time in less than 24 hours if ordered on a week day). Depending on location, U.S. orders will arrive between 3-5 business days from your order.

Canada orders typically arrive within 7-11 days.

Where is my order?

If you have not received your confirmation email us sales@docsdiesel.com so we can get everything sorted out ASAP.

If you received a confirmation but no shipment email, we are still working on your order. Don't hesitate to email sales@docsdiesel.com if you would like more information and we'd be happy to check on your order. Please Include your order # in the email.

For Tracking information, it will be in your shipment email. Check the tracking # first or the latest updates. Doc's Diesel, just like you are at the mercy of shipping companies after a shipment leaves our warehouse. If there's been an issue with shipment we will happilly work with you to figure out where the order is and what we can do to help. Once again you can reach out to sales@docsdiesel and include your order # in the email. Thank You.

If you are unhappy with your purchase for whatever reason and it's within 30 days from your purchase you can return your diesel filters back to us. Item has to be in new condition. Email us and we will email you a return slip. Once filters are received, we will refund your money (minus price of return shipping)  within 2-4 business days. We will refund to your original form of payment. 

To start a return email sales@docsautoparts.com

View Our Official Limited Warranty Policy

Thank You

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

DOC'S DIESEL

industry leading aftermarket diesel filters

OEM PERFORMANCE

Aftermarket Filters - OEM Form, Fit & Function.

FREE SHIPPING OVER $99

Free shipping on all Continental USA orders over $99. Expedited Shipping Available.

FITMENT GUARANTEED

If it doesn’t fit, we will offer you a replacement or a refund (*some conditions apply).

DOC'S DIESEL
THE NEW STANDARD IN AFTERMARKET FILTERS

Doc's Diesel Filters are spec'd and designed to meet or exceed the quality/performance of the original filters (OEM's) that come in your vehicle. Doc's premium grade media filter paper used on all Doc's Filters is what sets Doc's above the rest.

SAE OFFICIAL
3rd Party Tested ✓

We wanted to go one step further in customer trust by providing,SAE J1985 3rd Party Testing of our parts.We did a full upstream and downstream efficiency testing along with a single pass efficiency test method. Our main fuel filters have been 3rd party tested, and as we get more testing we will be reporting the results.

Customer Reviews

4.8 Based on 29 Reviews
5 ★
90% 
26
4 ★
3% 
1
3 ★
3% 
1
2 ★
3% 
1
1 ★
0% 
0
Customer Photos
Write a Review Ask a Question

Thank you for submitting a review!

Your input is very much appreciated. Share it with your friends so they can enjoy it too!

Filter Reviews:
03/27/2024

First time use

Nice jugs. And so far I like it.

03/23/2024

Good quality oil!

Perfect! Just what I needed! Great overall price for a quality product!

03/10/2024

Great product

I really appreciate the quick shipping and adequate packaging.