About Us

Lake Speed Jr. founded SPEEDiagnostix to bring winning insight to car enthusiasts like you.

Creation story

SPEEDiagnostix solved a problem for Joe Gibbs Racing's Motocross team and built a service anyone can use.

When the team changed from Yamaha to Suzuki, the riders struggled with clutch consistency, so they reached out to Lake Speed Jr to analyze their oils to find the right blend. After working with SPEEDiagnostix, JGRmx solved the inconsistent clutch performance and that increased their rider's confidence, which increased the teams performance. Today, that same problem solving power and driving confidence is available to you.

SPEEDiagnostix evolved from one family’s experience in the racing industry.

Recognizing the need for fast turnaround used oil analysis, the Speed family founded SPEEDiagnostix to provide expedited, expert used oil analysis services. Tailored to meet the unique needs of racers, enthusiasts, engine builders, performance parts manufacturers and classic car owners, SPEEDiagnostix provides data and analysis that draws from decades of racing, engine building, oil blending and used oil analysis experience.

Lake Speed Sr is a former NASCAR driver and World Karting Champion. Lake Speed Jr is a Certified Lubrication Specialist and Oil Analyst. SPEEDiagnostix combines the passion and experience of the Speed family into a service focused on quickly delivering to our customers valuable information about the health of the oil and equipment being sampled.

Whether it’s a track day, race or just a road trip, drive with confidence. SPEEDiagnostix provides the expert used oil analysis that allows you to know you are good to go. 

Cutting-Edge Technology

During WWII, the US Navy pioneered used oil analysis to know when aircraft could go into battle or go to the maintenance shop. Today, Formula 1 teams rely on used oil analysis at the race track, and you can drive with that same winning confidence as Max Verstappen, Lewis Hamilton or those aviators of old.

Every time you change your oil, it’s an opportunity to listen to your engine. Used oil analysis lets you hear what your engine has to say. Is the tune up off, is it running too hot, does it want a thicker oil?

Your engine is talking. SPEEDiagnostix helps you listen, and we provide an interpreter.

Our Founder

One of the world’s foremost Tribologists (the study of Friction, Wear and Lubrication), Lake Speed Jr. holds multiple certifications from the Society of Tribologists & Lubrication Engineers. Lake also formulated the lubricants used by Joe Gibbs Racing (and other professional teams) to win the Daytona 500 and numerous NASCAR championships. 

Lake founded SPEEDiagnostix to bring that championship winning knowledge to car enthusiast like you, and provide reports written in plain English (a chemistry degree is not required).

Why SPEEDiagnostix?

Utilizing the same technology applied by Formula 1 and NASCAR teams, catastrophic engine failure can be prevented by early detection.  SPEEDiagnostix combines expedited processing and modern analytical techniques with Lake’s knowledge of engines and to deliver valuable data in a timely manner.  The results provided by SPEEDiagnostix allows you to make decisions based on science, not speculation.  

In as soon as 3 days, you can know the health of your engine, transmission, or gear box, and it is cost effective.  For as little as $59.95 per sample*, SPEEDiagnostix provides the ability to spot a problem before it costs you a race, a tow truck bill or a complete engine.

How much does it cost to replace parts damaged by a catastrophic failure?

Beyond just the analysis to identify a problem, SPEEDiagnostix also provides the expertise to help solve the problem. With Lake’s experience in engine testing and lubricants, SPEEDiagnostix is the only lab that provides both results and recommendations based on championships. Lake personally reviews and sends every SPEEDiagnostix report.

This sets SPEEDiagnostix apart from other labs. There are lots of places that can test oil, but do they know factory Porsche engines from the early 2000’s feature Lokasil cylinders, which changes the wear metal profile of these engines? While local labs are great if you need to analyze the used oil from your Caterpillar Bulldozer, they are not the best choice if you have an 8,000 RPM V8.

With SPEEDiagnostix, you can drive with confidence that your engine is up to the task. It’s how to know you are good to go.