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.
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.
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Great parts for a fraction of the cost
This Additive is great, I purchased another six pack.
Works great, easy to measure and pour
It is just fine like the filters
I’m sure this product cleaned my injectors and everything else it claims, but my mileage has yet to see and increase. If it increases by the time I finish the bottle I will buy more.