Oil, Fluid, and Additive

How does ZDDP or zinc help my engine live longer, what does ZDDP do and why is it important to use ZDDP oil in my engine?

Our ZDDP oil list covers conventional, synthetic, and diesel oil zinc content levels to help you determine the best oil for your engine's needs.

OEMs have moved away from flat tappet cams, and so has mainstream motor oil. Find out what you need to know about the best oil for flat tappet cams right here.

Motor oil composition has changed. The reduction of ZDDP, zinc in oil, could now spell disaster for your engine. Watch this video to learn about ZDDP additives.

Take your crate motor racing to the next level with these tricks and tips that won't get you in hot water with tech officials!

Learn the difference between DOT 3 and DOT 4, or DOT 5 and DOT 5.1. Every type of brake fluid has a specific boiling point and water absorbing quality.

Posi, limited slip, Traction-Lok, or whatever your favorite brand calls it is how your rear axle provide equal traction to both tires, and trust us, you’ll need it! So, read all about posi units and their benefits here in our guide.

Lucas P. explains how to choose the correct part for a Ford 9" third member build in order to achieve a bulletproof rear. You will find specific recommended parts to use from Speedway Motors.

Lake Speed Jr., from Driven Racing Oil, answers the question "what viscosity grade should I run". He explains what viscosity really means and some key factors to keep in mind when selecting the right viscosity grade for your engine and application.

Manual brake bleeding can be one of the most efficient ways to bleed the air out of your brake lines. Speedway Motors has created a guide to show you step-by-step how to manually bleed your brakes.