Information On How To Have A Fuel Or Fluid Sample Tested (25-NA-065)

INFORMATION ON HOW TO HAVE A FUEL OR FLUID SAMPLE TESTED

TECHNICAL SERVICE BULLETIN

SERVICE INFORMATION

Brand:	Model:	Model Year:		VIN:		Engine:	Transmission:
		from	to	from	to
Buick	All	2015	2026
Cadillac
Chevrolet
GMC

Involved Region or Country	North America
Information	If a fluid sample analysis is to be used to determine warranty eligibility, you may want to obtain an independent analysis from one of the companies listed below.

SERVICE INFORMATION

FOR INDEPENDENT ANALYSIS OF A FLUID SAMPLE:

For an independent analysis of the sample, please see the contact information below:

For the testing of Oil, Fuel, and Coolant Contamination:

ALS Trithology

6180 Halle Drive

Suit D

Valley View Ohio 44125

1-800-726-5400

Http://www.alsglobal.com 

SERVICE INFORMATION

For the testing of Oil, Coolant, Fuels, Transmission, and All hydraulic Fluids including Power Steering and Brake fluid:

Southwest Research Institute

6220 Culebra Rd.

P.O Drawer 28510

San Antonio, Texas 78238-5166

Contact: Janet Barker 210-522-6924 or Mike Birke 210-522-5310

Http://www.SWRI.org 

SERVICE INFORMATION

For the testing of Oil, Coolant, Fuels, Transmission, and All hydraulic Fluids including Power Steering, Brake Fluid, and Refrigerants:

Bureau Veritas Commodities Division

10770 Vine Crest Drive

Houston, Texas 77086

Phone: 800 655 4473?

[email protected]

www.oil-testing.com 

SERVICE INFORMATION

For the testing of Oil, Coolant, Diesel Fuels and All hydraulic Fluids including Power Steering, Brake Fluid and Refrigerants:

Herguth Laboratories

101 Corporate Place,

Vallejo, CA 94590-6968

Phone: (707) 554-4611

Toll Free: 1-888-HERGUTH (437-4884)

Http://www.herguth.com 

FOR GM ANALYSIS OF A FUEL SAMPLE

When working with TAC, an FSE, or Brand Quality and a fluid sample is requested for analysis:

1. Contact Patti Guyer at Hazmatpac and order a UN - 202 (these are two bottle sample kits. Four bottle kits are also available if needed
   • Patti Guyer
   • Hazmatpac
   • Houston, TX
   • [email protected]
   • 1-800-923-9123 x216
2. Collect a sample of the fuel to be tested. The fluid should not be from a filter. Collect sample from tank.
3. Fill the 1-liter glass sample bottles about 80% full (just below the curved top of the bottle):
   • The amount of fuel in the bottle must not exceed 90%
   • If the total volume of fuel available is less than the 80%, supply as much as possible. Some tests may not be possible if bottle is less than 80%
4. Provide the following information on the label and attach to the bottle:
   • VIN
   • Fuel Type
   • Location
   • Date Sampled
   • Mileage
5. Securely tighten the glass bottle lid, and place in Hazmat Pack:
   • Ensure the cap is tightened and taped
   • Place the glass bottle in the yellow sleeve, enclose with the plastic bag, and zip tie close
   • If sample is gasoline, ethanol, or any combination of the two, attach the enclosed NFPA sticker to the outside of the box
6. Items to place in the box:
   • Packaged bottles
   • Any relevant associated oil samples
   • Documentation including:
     • Contact information for:

       Dealership service desk, technician, customer

       Person receiving results (Phone# and email address)

       Primary contact if the GM lab has further questions (Phone# and email address)

     • Sampling location: fuel tank, fuel rail, service station, etc.
     • Customer Fuel Questionnaire

SERVICE INFORMATION

Ship Samples to:

Diesel Samples 

• Shailesh Lopes
• Biofuels Lab Address:
• GM Milford Proving Grounds
• 3300 General Motors Rd.
• Building 42A
• Milford, MI 48380

Gasoline Samples 

• Stephen Kirby
• Pontiac North CET - Building C
• Dock 45, Drop Zone CPTZ
• 850 Glenwood Ave
• Pontiac, MI 48340

FOR GM ANALYSIS OF OTHER FLUIDS

You will need to contact TAC, the field service engineer, or brand quality manager for shipping information and contact.

On occasion, you may be asked to submit a fluid sample of engine oil, transmission oil, power steering oil, coolant, or other fluids. For these samples, there are many sample shipping kits available online or feel free to contact Hazmatpac using the contact above. These fluid samples should include:

• Contact information for:
  • Dealership service desk, technician, customer
  • Person receiving results (Phone# and email address)
  • Primary contact if the GM lab has further questions (Phone# and email address)
• Location where sample was taken (hose, tank, reservoir, etc.)
• Type of Sample

CUSTOMER QUESTIONNAIRE FOR FUEL SAMPLES

Filling out the questionnaire will not affect your vehicle warranty!  GM is looking for additional information to help survey fuel usage and determine the potential causes of the problem. Answer as many questions as you can. Thank you very much for your assistance.

Date
Customer name
Customer telephone number:
e-mail address:
VIN (s)
Describe the problem your vehicle(s) was having: Examples: Hard starting/no start Rough idle Sluggishness (no power) Stalling Hesitation Check engine light came on
Has your vehicle had this problem before? (please circle)	Yes	No
Is your vehicle driven daily? (please circle)	Yes	No
How many miles is your vehicle driven daily?
What percentage of the miles are driven on the highway?
Describe vehicle usage (I.e. Personal commute, recreational, commercial, heavy-duty/heavy payloads, patrol, etc.)
What grade of fuel is normally purchased for your vehicle? (please circle)	Regular (87 octane) Mid-grade (89 octane) Premium (91 octane or higher) E85 Other Intermediate Ethanol Blends	Diesel fuel Bio-diesel fuel (specify grade) Renewable Diesel (R95, R99, etc.) Other types of fuel (please list)
Rank the 3 most frequently used fuel brands, with 1 being the most frequently used and 3 being the least used.	__76 __Aloha __Amoco __ARCO __Beaconl __BP __Break Time __Cenex __Chevron __CITGO __Conoco __Co-op __Costco __CountryMark __Diamond __Esso __Express __Exxon __Hele __Holiday __Kwik Star	__Kwik Trip __Petro-Canada __Mahalo __MFA __Mobil __Ohana __Phillips 66 __PUMA __QT __QuikTrip __Road Ranger __Shamrock __Shell __Sinclair __Shamrock __SuperAmerica __SuperFuels __Tempo __Texaco __Tri-Par Qwik Stop __Valero
	__Others (Please list below)
Where did you buy the fuel when you started noticing issues?
Did you notice any abnormal sounds coming from the vehicle? If yes, please describe.	Yes	No
Does your drive include significant elevation changes?	Yes	No
Do you generally purchase the same brand of fuel? (please circle) If yes, what brand is it?	Yes	No
	Brand Name:
If you generally purchase the same brand of fuel, is it purchased at the same location? (please circle) If yes, what is the location?	Yes	No
	Location:
Please feel free to provide other relevant information and comments

SERVICE INFORMATION

Thank you very much for taking the time to fill out this questionnaire! 

Please have the dealership return the completed questionnaire either with the fuel samples or e-mailed to:

• Stephen R. Kirby, GM Fuels Group
• [email protected]

WARRANTY INFORMATION

For vehicles repaired under the Powertrain coverage, use the following labor operation. Reference the Applicable Warranties section of Investigate Vehicle History (IVH) for coverage information.

Labor Operation	Description	Labor Time
4089528*	Fuel Sample Collection	1.0
*This is a unique Labor Operation for Bulletin use only.

SERVICE INFORMATION

Version	1
Modified	Released March 21, 2025