Testing Services – Testimonials


We at Sterling Performance provide our customers with surveys in order to constantly gauge customer feedback, improve or service, and add to our testing capabilities.

Our Service Is Constantly Rated High By Our Customers:
We average between 4 and 5 star ratings in “all” of our customer satisfaction categories which includes; Communication, Courtesy, Technical Competence, Adherence to Timeline, Quality of Reports, Quality of Service, and Overall Satisfaction.


YUI continues to use Sterling as our primary testing facility.

Laurie Pottorff

Yasufuku USA, Inc.

Turn-around time, testing competency, and personal interaction remain at high levels. Thanks.

Dale Ballenger

Visteon (Rail Testing)

Sterling Performance continues to provide top notch testing and development services for Visteon Fuel Rail and Fcas.

Art Wiard

Visteon (Rail / Hose Testing)

The level of work by Sterling Performance personnel (Don Hancock in particular), including UP-FRONT inputs/suggestions/comments, was EXCELLENT. Almost all of the testing I requested significantly benefited from input from the Sterling Group. Work were ALWAYS completed ON-TIME or AHEAD of schedule, and at a very REASONABLE COST. The Test Reports filed by Sterling were OUTSTANDING. Were it not for Visteon’s “In-House” Test Requests Procedures/Protocol, ALL my Test Requests (regarding the FPCD Development) would be submitted to Sterling. Thanks for the great work completed.

Trevor L.A. Steer

Visteon Fuel Storage & Delivery (SHED Testing)

“The most important thing that led me to rate Sterling’s performance as high as I did is the flexibility you’ve exhibited toward scheduling and completing my test requests on very short notice…”

Brian Anderson

Ford Motor Company (NVH Evaluation)

“Sterling’s technical competence is as good as it gets, as is your willingness to do what it takes to get the job done, including staffing on weekends, etc. Problems (engine, control, data acquisition, etc.) all just somehow seem to get handled in a timely manner due to the able and conscientious people that you have working for you. I also appreciate the frequent and timely communication provided by Alvin. If ever I can provide a reference, I’d be pleased to do so.”

John Kreucher

Delphi (Oxygen Sensor Engine Durability Testing)

“Sterling is willing to work through the unknowns and for a reasonable price. This is important to an engineering manager.”

Eric Hahne

Continental (High Pressure Pumps)

“Sterling Performance and their testing personnel have enabled me to make great strides in developing new fuel system products. I have submitted at least three patent applications to the US Patent Office, which contain significant amounts of data proving the effectiveness of my new products. In many cases no standard testing existed to prove out the product concepts. The testing personnel at Sterling Performance were critical in developing new tests. Some of these tests have become standard tests for our products, and in at least one case have been adopted by our OEM customer as part of their Engineering Specification.”

Chris Treusch

Visteon (Pulsation Testing)

Sterling has been a very good company to work with.

Dales Fisher

Martinrea Industries (Hose Testing)

Excellent service, on timing delivery, and very impressive report

Julie Meng

Visteon (VDDD Testing)

“Alvin writes a very professional test report with excellent attention to detail. These reports have been submitted as backup data for government compliance requirements. Jon does an excellent job of managing the actual testing. I have been impressed with the quality of work and the facility itself.”

Jim Summers

Ford Motor Company

“I have worked with Sterling Performance the past 2 years. I have nothing but positive feedback to give having had no issues. Alvin’s knowledge of Helium Leak testing and experience in “lessons learned” has help significantly when there have been issues on my samples.”

Lee Stoeckl


Keep up the good work!

Scott Rier

Martinrea Industries (Hose Testing)

You guys do a great job. No complaints.

David Walker

Cooper-Standard (Hose Testing)

“Jon, Don, and Alvin have been very easy to work with. Don is able to occasionally drop off parts on his way home when needed. Any time there is a potential issue, Jon or Don always alert us to avoid issues down he road. Testing quality has been very good. Sterling is willing to invest in equipment and fixturing when needed.”

Dan Cunkle

Martinrea Industries (SHED Testing)

I have been very impressed in our dealings with Sterling in general and Tim Cushing in particular. I feel that Sterling has gone above and beyond in taking care of Yamaha’s needs and requests.

Tom Pugh

Yamaha Motor (ATV Tank Permeation Testing)

“Jon is always helpful with technical questions and provides concise explanations. Testing is performed as requested; any missing information is clarified before testing and is always handled in a timely fashion.”

Doug Poley

Martinrea Industries (Permeation Testing)

I came to Sterling Performance in May of 2007 with the need to conduct acoustic testing with gasoline. A flow related problem was not consistently appearing with stoddard fluid. The problem was solved with the help of Sterling Performance and the vehicle launch was successful. Sterling Performance met all my acoustic testing needs at a moments notice. The staff at Sterling Performance are professional and pleasant to work with. Sterling Performance has proved to be fair and flexible in providing a Fuel System NVH test facility and technician as needed for evolving investigative work requests. Sterling Performance has the tools and expertise to work with “live” fuel and they have been a good partner in improving the NVH of Automotive Fuel Systems.

Dan Gorsich

Ford Motor Company (Fuel Tank Acoustic Testing)

Customers are #1 to us. We would like to thank all our customers who take the time to complete our surveys and provide us feedback to improve the professional services you receive.

We use your feedback to continuously improve the results and experience you receive using Sterling Performance Testing Service.

For more information or to request a quote, contact us today.

Other Services

Carbon canister testing

Complete Carbon Canister Testing using the guidelines set forth by EPA & CARB

Battery Testing

Battery Cell Testing, Battery Pack Testing on all types of batteries, including EV battery testing.

Hose Testing

All forms of hoses, assemblies, & connectors. Fuel hose testing, coolant hose testing, fluid hose testing, automotive hose testing.

Pump Testing

Any Fuels or Fluids, Hydraulic oils, and water, Including EV cooling pump testing for EV’s & PHEV’s.

Evaporative Emissions

Evaporative emissions testing utilizing SHED testing methods.

Thermal Shock Testing

We can simulate virtually any environmental condition with our multiple thermal & humidity chambers.

Fuel System Components

Anything related to the fuel delivery system, pumps, injectors, lines, tanks, valves, fill pipes, rails.

Fluids Testing

From Coolants to solvents to oils, filters, hoses, & plastic parts.

Vibration Testing/NVH Testing

Vibration, shock, and acceleration testing can be done individually or in conjunction with temperature, pressure, flow.