NHTSA ID Number: 10178302
Manufacturer Communication Number: PIP5257E
Summary
This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that may have oil mixed in with the engine coolant. Technician will need to inspect the oil cooler if equipped for possible leaking into the cooling system through the radiator. If no issue found replace the engine as well as all rubber coolant hoses. Also updated to include ALL HFV6 engines Gen1 and Gen2.
148 Affected Products
Vehicles
| MAKE | MODEL | YEAR |
| BUICK | ENCLAVE | 2010-2020 |
| BUICK | LACROSSE | 2010-2019 |
| CADILLAC | ATS | 2013-2019 |
| CADILLAC | CT5 | 2020 |
| CADILLAC | CT6 | 2016-2020 |
| CADILLAC | CTS | 2010-2019 |
| CADILLAC | SRX | 2010-2016 |
| CADILLAC | XT5 | 2017-2020 |
| CADILLAC | XT6 | 2020 |
| CADILLAC | XTS | 2013-2019 |
| CHEVROLET | BLAZER | 2019-2020 |
| CHEVROLET | CAMARO | 2010-2020 |
| CHEVROLET | CAPRICE POLICE PURSUIT | 2012-2017 |
| CHEVROLET | CAPTIVA | 2013-2018 |
| CHEVROLET | CAPTIVA SPORT | 2011-2012 |
| CHEVROLET | COLORADO | 2015-2020 |
| CHEVROLET | EQUINOX | 2010-2017 |
| CHEVROLET | IMPALA | 2012-2020 |
| CHEVROLET | TRAVERSE | 2010-2020 |
| GMC | ACADIA | 2010-2020 |
| GMC | CANYON | 2015-2020 |
| GMC | TERRAIN | 2010-2016 |
Bulletin No.: PIP5257E
Published date: 06/1/2020
Preliminary Information
PIP5257E Cooling System Contaminated With Engine Oil
Models
Brand: Model: Model Years:
VIN:
Engine: Transmissions:
from to
Buick Enclave 2010 – 2020 All All 3.6 LFY, LLT All
Buick LaCrosse 2010 – 2019 All All 3.0 LF1, LFW, 3.6 LFX, LGX, LLT All
Buick Allure 2010 – 2016 All All 3.0 LF1, LFW, 3.6 LFX, LLT All
Cadillac ATS 2013 – 2019 All All 3.6 LF4, LFX, LGX All
Cadillac CT5 2020 All All 3.0 LGY All
Cadillac CT6 2016 – 2020 All All 3.0 LGW, 3.6 LGX All
Cadillac CTS 2010 – 2019 All All 3.0 LFW, 3.6 LF3, LFX, LGX, LLT All
Cadillac SRX 2010 – 2016 All All 3.6 LFX, LLT All
Cadillac XT5 2017 – 2020 All All 3.6 LGX All
Cadillac XT6 2020 All All 3.6 LGX All
Cadillac XTS 2013 – 2019 All All 3.6 LF3, LFX All
Chevrolet Blazer 2019 – 2020 All All 3.6 LGX All
Chevrolet Camaro 2010 – 2020 All All 3.6 LFX, LGX, LLT All
Chevrolet Caprice PPV 2012 – 2017 All All 3.6 LFX All
Chevrolet Captiva Sport 2011 – 2018 All All 3.0 LFW, 3.6 LFX All
Chevrolet Colorado 2015 – 2020 All All 3.6 LFX, LGZ All
Chevrolet Equinox 2010 – 2017 All All 3.0 LF1, LFW, 3.6 LLT, LFX All
Chevrolet Impala 2012 – 2020 All All 3.6 LFX All
Chevrolet Traverse 2010 – 2020 All All 3.6 LFY, LLT All
GMC Acadia 2010 – 2020 All All 3.6 LGX, LLT All
GMC Canyon 2015 – 2020 All All 3.6 LFX, LGZ All
GMC Terrain 2010 – 2016 All All 3.0 LF1, LFW, 3.6 LLT, LFX All
Supersession Statement
This PI was superseded to add HFV6 Gen2 equipped models and MY vehicles. Please discard PIP5257C
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition / Concern
A vehicle may be brought in for oil in the cooling system, Oil in the coolant overflow
reservoir, or overheat due to coolant blown out of coolant reservoir or too thick to flow.
You will normally find a very thick oil in coolant mix in the radiator and coolant overflow
reservoir.
This condition may be caused by a leakage from the main oil gallery to a water jacket
through block porosity or thin wall casting.
The average oil pressure is over 60 psi and the coolant pressure is 16 psi.
Recommendations / Instructions
If you encounter a vehicle with this concern,
First, if equipped, test the oil cooler system for possible leaking into the coolant through the
radiator.
When checking the oil cooler make sure to use higher pressure (100 PSI) on the oil side of
the cooler.
If the oil cooler tests good, or the vehicle is not equipped with an oil cooler, then reference
this PI and replace the engine as well as all rubber coolant hoses.
Flush the radiator and heater core if possible or replace those as needed.
Also if equipped flush the rear heater core and replace hoses as needed.
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
4067490 Engine Replacement Use Published Labor
Operation Time
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is
resolved without completing every step, the remaining steps do not need to be performed.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIP5257E
Published date: 06/1/2020
https://www.nhtsa.gov/recalls?nhtsaId=10178302
Reload document 
Open in new tab NHTSA ID Number: 10163658
Manufacturer Communication Number: PIP5257C
Summary
This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that may have oil mixed in with the engine coolant. Technician will need to inspect the oil cooler if equipped for possible leaking into the cooling system through the radiator. If no issue found replace the engine as well as all rubber coolant hoses.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIP5257C
Published date: 07/9/2019
https://www.nhtsa.gov/recalls?nhtsaId=10163658
Loading...
Loading...
NHTSA ID Number: 10143762
Manufacturer Communication Number: PIP5257B
Summary
This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that may have oil mixed in with the engine coolant. Technician will need to inspect the oil cooler if equipped for possible leaking into the cooling system through the radiator. If no issue found replace the engine as well as all rubber coolant hoses.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIP5257B
Published date: 07/12/2018
https://www.nhtsa.gov/recalls?nhtsaId=10143762
MC-10143762-9999.pdf 102.338KB
Loading...
Loading...
NHTSA ID Number: 10115003
Manufacturer Communication Number: PIP5257A
Summary
This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that may have oil mixed in with the engine coolant. Technician will need to inspect the oil cooler if equipped for possible leaking into the cooling system through the radiator. If no issue found replace the engine as well as all rubber coolant hoses.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIP5257A
Date: Dec-2015
https://www.nhtsa.gov/recalls?nhtsaId=10115003
Loading...
Loading...
NHTSA ID Number: 10114355
Manufacturer Communication Number: PIP5257
Summary
This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that may have oil mixed in with the engine coolant. Technician will need to inspect the oil cooler if equipped for possible leaking into the cooling system through the radiator. If no issue found replace the engine as well as all rubber coolant hoses.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIP5257
Date: Jan-2015
https://www.nhtsa.gov/recalls?nhtsaId=10114355
Loading...
Loading...
NHTSA ID Number: 10095197
Manufacturer Communication Number: PIP5257
Summary
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ON THE STEPS TO DIAGNOSE AND REPAIR VEHICLES THAT MAY HAVE OIL MIXED IN WITH THE ENGINE COOLANT. TECHNICIAN WILL NEED TO INSPECT THE OIL COOLER IF EQUIPPED FOR POSSIBLE LEAKING INTO THE COOLING SYSTEM THROUGH THE RADIATOR. IF NO ISSUE FOUND REPLACE THE ENGINE AS WELL AS ALL RUBBER COOLANT HOSES.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIP5257
Date: Jan-2015
https://www.nhtsa.gov/recalls?nhtsaId=10095197
Loading...
Loading...
- concerti
- Audio CD – Audiobook
- Audience Rating: NR (Not Rated)
- 01/29/2021 (Publication Date) - Alliance (Publisher)
- Contains a bittering agent
- Specially formulated for long service intervals, the coolant can last up to 5 years or 150,000 miles. (Maintenance needs vary with different uses and driving conditions. See your Owner's Manual for more information)
- Provides effective long-term anti-corrosion support by protecting brass, cast iron, steel, solder, and copper components. Also provides superior high-temperature protection for aluminum components.
- Non-silicate formula retains excellent heat transfer characteristics for improved water pump life
- Long shelf life: storage-stable for 8 years
- The backwards compatible formula can be used with conventional cooling systems and may also be used for service of all 1994-95 GM vehicles EXCEPT 1994 Cavaliers/Sunfires with 4-cylinder engines. Must be replaced every 2 years/30,000 miles whenever used in a vehicle not originally designed to use Dex-Cool
- ACDelco 10-101 DEX COOL (ORANGE)
- Contains A Bittering Agent
- OEM
- The 50/50 mixture provides protection down to -34 degree fahrenheit
- Combines the excellent temperature and corrosion protection
- Helps reduce the risk of cooling system deposits
- Contains 30 – 50 ppm of denatonium benzoate as a bittering agent
- Designed to quickly pinpoint leaks in cooling systems that use DEX-COOL (orange) coolants
- Special formula will not change the color of the coolant
- Fluorescent dye assists with visual leak detection to eliminate guess work
- Works in conjunction with the ACDelco Ultra Violet (UV) Leak Detection Lamp Kit
- The formulation is designed for both gasoline and diesel engines
- Its lower-silicate, reduced pH, phosphate free European technology protects all cooling system metals, including aluminum, from corrosion
- ZEREX G-05 is a nitrite containing coolant designed to protect diesel engine cylinder liners from cavitation. It contains deposit control additives for protection from hard water deposits and scale
- ZEREX G-05 contains a high quality defoamer system and will not harm hoses, plastics or original vehicle finishes
- For any product use or product technical questions call 1-800-TEAM-VAL
- Application: North American cars and light duty vehicles.
- Recommended for: Chevrolet, Cadillac, Buick, GMC, Hummer, Pontiac, Oldsmobile, Saturn, Saab
- Formulation Features: Silicate, borate, nitrate, nitrite, phosphate & amine free.
- Meets or exceeds performance requirements of: ASTM D3306; JIS K2234
- Compatible with other similarly formulated OAT coolants. For best results, do not mix with conventional high pH, phosphate, borate or silicate based coolants.
- Excellent for complete coolant system refills or for topping off existing fills
- Compatible with all conventional antifreezes and orange DEX-COOL
- Protects cast iron, aluminum, steel, brass, copper and solder
- Reduces formation of abrasive solids to help extend water pump life
- Contains ethylene glycol with a certified bittering agent for safety
Last update on 2021-01-27 / Affiliate links / Images from Amazon Product Advertising API
Last update on 2021-01-27 / Affiliate links / Images from Amazon Product Advertising API
