Jan 7, 2020Fuel system
THE OIL DIPSTICK SMELLS OF GASOLINE. THE TURBO CHARGER TECHNOLOGY IS ALLOWING GAS TO PUSH PAST THE OIL AND INTO THE ENGINE. OIL AND GAS SHOULDN'T BE MIXING.
NHTSA ODI 11297734
Home · 2018 Honda Civic Cng · Complaints
What 598 owners told NHTSA about the 2018 Honda Civic Cng
These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.
All (598)Crash / fire / injury (36)Steering (224)Fuel system (159)Electrical system (51)Engine (50)Brakes (21)Airbags (20)Body & structure (19)Transmission & drivetrain (14)Visibility & wipers (13)Driver assistance (8)
159 of 598 complaints match · Fuel system · clear filters · page 7 of 7
Oct 4, 2019Fuel system
EMISSIONS SYSTEM PROBLEM, CAR IS ACTING WEIRD AND GIVING A KICK BACK WHEN DRIVING
NHTSA ODI 11266188
Aug 16, 2019EngineFuel system
2018 HONDA CIVIC HATCHBACK, GASOLINE SMELL IN CABIN OCCURRED ON 8/16/2019. 1.5L OIL DILUTION COULD BE CAUSE OF ISSUE.
NHTSA ODI 11244554
May 28, 2019Transmission & drivetrainEngineFuel system
ACCELERATING UP TO 60 MPH CAR BEGAN TO JERK VIOLENTLY. FLASHING CHECK ENGINE LIGHT CAME ON AND ALL CONTROL OF GAS PETAL WAS LOST UNTIL CAR SLOWED TO UNDER 20 - 25 MPH. OBD2 CODES PULLED AND REPORTED MISFIRING IN CYLINDER 1. CAR NOT ABLE TO BE DRIVEN UNDER ANY NORMAL CONDITIONS AS MISFIRING HAS INTENSIFIED. 2018 HONDA CIVIC SI
NHTSA ODI 11210500
Apr 21, 2019EngineFuel system
OIL DILUTED WITH FUEL (3/4" ABOVE THE FULL MARK ON THE DIPSTICK) - THIS IS A PROBLEM WITH HONDA'S 1.5 TURBO ENGINE (CIVIC, CRV). OTHERS WITH THIS ISSUE HAVE REPORTED THEIR VEHICLES STALLING WHILE DRIVING AT 70 MPH -- DEFINITELY A SAFETY ISSUE.
NHTSA ODI 11202744
Jan 8, 2019Fuel system
EXCESS FUEL IS ENTERING THE ENGINE OIL WHICH IS DILUTING THE OIL AND CAUSING PREMATURE WEAR.
NHTSA ODI 11165937
Nov 10, 2018Fuel system
CHANGED OIL AT 40 % LIFE AND FOUND GASOLINE IN OIL NOT SURE HOW MUCH BUT VERY STRONG ODER.
NHTSA ODI 11150772
Nov 8, 2018EngineFuel system
AT 2025 MILES MY 2018 CIVICTHAT I HAD FOR 2ISH MONTHS STARTED SMELLING LIKE FUEL IN THE CAB. SO I LOOKED IT UP AND THE EARTH DREAMS MOTOR IS HAVING OIL DILUTION PROBLEMS AND IT IS BECOMING MORE COMMON. SO I CHECKED MY OIL AND FOUND MY CAR A QUART OVERFULL WITH FUEL IN MY OIL. I THEN HAD IT TOWED TO THE DEALERSHIP WHERE THEY GAVE IT A FREE OIL CHANGE AND SAID THAT THERE IS NO FIX ANDIT IS NORMAL. THE OIL VISCOSITY WILL DETERIORATE EVENTUAL LEAVING ME WITHA KNOCK OR DISABLED ON THE SIDE OF THE ROAD. IT IS AN ISSUE THAT CAN CAUSE A CRASH OR SICKNESS WHEN THE NOXIOUS GAS SMELL COMES BACK. I HAVE NOW PUT 450 MILES ON IT SINCE THE OIL CHANGE AND AM SMELLING FUEL IN MY OIL AGAIN.
NHTSA ODI 11150028
Aug 23, 2018AirbagsElectronic Stability Control (esc)Fuel systemCrash
HAD TO HAVE TO MANY OIL CHANGES, ALMOST ONE A MONTH , NOT GOOD ON THE MILAGE THEN A CAMRY MAYBE WOULD HOLD OFF THAT MANY CHANGES.
NHTSA ODI 11121909
Working with the data? Download all 598 complaints as CSV · fetched from NHTSA July 28, 2026
How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2018 Honda Civic Cng verdict →