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Product Summary

16 fl. oz. Volume, Break-in Oil Additive Type

  • Designed to be added to your engine oil for the camshaft break-in period
  • Can be used when you assemble your engine and with each oil change as well
  • Formulated with the proper anti-friction additives needed when using engines with flat tappet camshafts
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Key Specs

MFG. Part #81403
BrandRedline
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Need To Know

Liquid/Compound Return Policy

For health, safety, and product integrity reasons, only unopened, sealed items are eligible for return or credit.

Return Policy

Redline 81403 Details

A lot has happened over the last year that affects your engine. The biggest is the reduction of zinc in the oils you use. Zinc is a great anti-friction additive but it also gets burned in the combustion chamber and then goes out the tailpipe of your car or truck.

This adds to the pollution problem on street driven cars, but not so much in race engines as they tend to be more efficient and have a better ring package.

Odds are the oil you are using does not have as much zinc in it anymore and you need to add this camshaft break-in additive.

If not, you can wipe out your new cam and lifters in the first 30 seconds of running. Adding Redline's additive when you assemble your engine and with each oil change will ensure you have enough additives to help keep your engine alive.

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Redline 81403 Specifications

KEY SPECS
MFG. Part #81403
BrandRedline
GENERAL
Sold in QuantityEach
Volume16 fl. oz.
Oil Additive TypeBreak-in
GTIN Code083522814034

Ratings & Reviews

5

7 Reviews

Overall Assessment

Customers praise this product for its exceptional quality and performance, specifically in prolonging engine life and reducing wear. It's proven to be practical and effective for both older vehicles requiring ZDDP and fresh performance builds in dragster engines. Users regard it as essential during engine oil changes and particularly helpful for cam break-in. The product's superiority is attested by users who faced issues with cams wearing due to the absence of a zinc additive, whereas using this product caused absolutely no problems. It is highly recommended for consistent use due to its demonstrated protective benefits.

5

7 reviews

5

7

4

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Use it in every oil change.

5.0

10 months ago

Redchevelle71

Fremont NE

Verified

I use this product in all of my older engines with each oil change. It contains the high levels of zinc needed for older engines, especially those with solid lifters.

Would Recommend

i would buy this product again.

5.0

5 years ago

carcrazy

Monterey

Verified

Have used this in a Flathead Ford V-8 for 15,000 miles over a 5 year period with great results. The engine runs great and shows no signs of wear.

Would Recommend

I would buy it again

5.0

8 years ago

Manny

Burlington mass

Verified

Added to engine oil for break in

Would Recommend

An absolute must.

5.0

8 years ago

redchevelle71

Fremont

Verified

I use this additive every time I change oil in my older vehicles that require ZDDP .

Would Recommend

I would buy this product again

5.0

8 years ago

Jo

Callands, va

Verified

Best one to use!

Would Recommend

Great product for a new performance build

5.0

9 years ago

Dragster 55

Newalla, Ok

Verified

Even though most people use this product it seems for flat tappet engine break ins, I wanted to use this in a dragster engine I am starting. There are alot of surfaces that are getting worn in and I wanted to protect them all.

Would Recommend

Protect your CAM!

5.0

14 years ago

fast daddy

Arkansas

Verified

I run a bottle during cam break in and in first oil change, then 1/2 bottle at each oil change after that.....so far, no problems for me. I have known others who didn't run a zinc additive and they lost lobes on their cams.

Would Recommend

Showing 7 of 7 reviews

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