Issue ID | 1161337 |
Internal NHTSA # | 10690607 |
Manufacurer | General Motors LLC |
Brand | CHEVROLET |
Model | SILVERADO |
Model Year | 2014 |
File date | 12/08/14 |
Component | FUEL/PROPULSION SYSTEM |
Product type code | VEHICLE |
Description of the problem | Gas mileage complaint . Stated mileage (hwy ) is 22 mpg , the first six monthes of driving did achieve this stated mileage ,occasionally as much as 23 mpg . After 2 recall service visits and an oil change , the mileage abruptly dropped to 18 mpg i complained to chev. Service in cottage grove ,or several times over the course of 4 monthes they advised me to change fuel (service stations ,) put a fuel booster additive in the tank ,check tire pressure . They also stated that the fuel mnfrs. Changing the fuel blend for the winter season may be the cause. No service codes in the computer . None of the suggested "fixes" have changed the mileage ,still at around 18 mpg . Something caused this sudden drop in mpg . I have a couple of ideas , 1. One recall was a computer software upgrade ,wrong shift parameters installed ? 2. At prescribed oil changes ,06/03/14 &12/18/14 , ( truck requires dexos 0-20 oil ) maybe wrong oil was installed ? One invoice shows 5w-30 was installed . However dealership denies installing wrong oil . How can i have the oil analyzed to determine which is in the truck ? *js |
Vehicle Mileage at Failure | 7500 |
Number of Occurences | 1 |
Source of the issue | NHTSA WEB SITE |
City and State | WESTFIR , OR |
VIN pattern | 1GCVKEC7EZ2XXXXXX |
Was vehicle invloved in a crash? | N |
Was vehicle involved in a fire? | N |
Was incedent reported to police? | N |
Was medical attention required? | N |
Was part original equipment? | |
No. of injured persons | 0 |
No. of fatalities | 0 |
Date of purchase | 12/12/24 |
Was original owner? | N |
Anti-lock brakes | N |
Cruise control | N |
Number of cylinders | |
Drive train type | |
Transmission type | |
Vehicle speed | 55 |
DoT tire identifier | |
Tire size | |
Location of tire code | |
Type of tire failure code | |
Was defective tire repaired? | |
Date of manufacture | |
Type of child seat code | |
Type of restraint | |
Dealer's name | |
Dealer's telephone number | |
Dealer's city | |
Dealer's state code | |
Dealer's ZIP code |