Research · Two Seaters

2018 Porsche 911 GT3Recalls, problems, MPG & safety

NHTSA lists 1 safety recall and 2 owner complaints for the 2018 Porsche 911 GT3. Most complaints involve back over prevention (1) and electrical system (1). The EPA rates it 16–17 mpg combined.

Combined MPG
16–17mpg
EPA · 3 versions
NHTSA overall
—
Not rated by NCAP
Safety recalls
1campaigns
Latest Dec 2019
Owner complaints
2
Top: back over prevention
Fuel cost / yr
$4,550est.
EPA estimate, best version
01 —Recalls

Safety recalls

1 NHTSA campaign · applies to some vehicles, check your VIN

Equipment: owners

Free remedy

Porsche Cars North America, Inc. (Porsche) is recalling certain 2014 Cayman and Cayman S, 2014-2016 911 GT3, 2016 911 GT3 RS and 911 R, 2018 911 GT3 and 911 GT2 RS and 2019 911 GT3 RS, 911 GT3, and 911 GT2 RS vehicles. The Child Restraint System (CRS) instructions within the Owner's Manual may not provide enough specificity for proper installation. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 225, "Child Restraint Anchorage Systems."

EquipmentReported Dec 11, 2019NHTSA 19V875000
Data from NHTSA Recalls API · synced Nov 11, 2026 · All recall detailsNHTSA vehicle page
02 —Complaints

Owner complaints by component

2 complaints filed with NHTSA · Jan 2022 – Oct 2023
  1. Back over prevention1
  2. Electrical system1

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.

By model year

Complaints for each 911 GT3 model year we’ve synced.

View as table
Model yearNHTSA complaints
20104
20112
20158
20162
20182
20192
202211
20233
Crashes reported
0
Fires reported
0
Injuries reported
0
Deaths reported
0
Data from NHTSA Complaints API · synced Nov 11, 2026NHTSA vehicle page
03 —Common problems

What owners report most

Verbatim excerpts from NHTSA complaints, by component

Back over prevention

1 report
“The contact owns a 2018 Porsche 911 GT3. The contact stated that while reversing, the back over prevention system failed to display a rear-view image. After a visual inspection of the rear of the vehicle, the contact became aware that the reverse lights also failed to illuminate. No warning lights were illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the transmission reverse switch. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 26,000.”
Owner complaint to NHTSAFiled Oct 19, 2023Back over preventionODI 11550911

Electrical system

1 report
“The contact owns a 2018 Porsche Carrera. The contact stated while driving at 50MPH when the contact attempted to turn off their headlight switch on the vehicle but instead accidentally hit the ignition switch which caused the engine to shut off and the vehicle to coast on its own. The contact was able to veer to the side of the road and restart the vehicle and continue to drive to their residence. The contact concern was that headlight and ignition switch on the vehicle were so close together that its manufacturer design an error with the vehicle which could lead into an accident while driving the vehicle. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 12,000.”
Owner complaint to NHTSAFiled Jan 27, 2022Electrical systemODI 11449177
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 11, 2026
04 —Key specs

Engines, transmissions & drive

3 versions rated by the EPA
EPA class
Two Seaters
Engines
4.0L 6-cyl
Transmissions
Automatic (AM-S7) · Manual 6-spd
Drive
Rear-Wheel Drive
Fuel
Premium Gasoline

Towing, payload and dimensions aren’t in the EPA or NHTSA data, so we don’t list them.

Data from EPA fueleconomy.gov · synced Nov 11, 2026EPA listing
05 —Fuel economy

EPA fuel economy by version

City / highway / combined, annual fuel cost and CO₂
EPA
VersionCityHwyComb.Fuel / yrCO₂ g/mi
911 GT3
Auto (AM-S7), 6 cyl, 4.0 L · Rear-Wheel Drive
152017$4,550522
911 GT3 Touring
Man 6-spd, 6 cyl, 4.0 L · Rear-Wheel Drive
142117$4,550538
911 GT3
Man 6-spd, 6 cyl, 4.0 L · Rear-Wheel Drive
132116$4,850566
  • 911 GT3
    Auto (AM-S7), 6 cyl, 4.0 L
    15 city · 20 hwy · $4,550/yr
    17
    mpg comb.
  • 911 GT3 Touring
    Man 6-spd, 6 cyl, 4.0 L
    14 city · 21 hwy · $4,550/yr
    17
    mpg comb.
  • 911 GT3
    Man 6-spd, 6 cyl, 4.0 L
    13 city · 21 hwy · $4,850/yr
    16
    mpg comb.
Data from EPA fueleconomy.gov · synced Nov 11, 2026 · Fuel cost is EPA’s annual estimate (15,000 mi, 55% city)
06 —Safety

NHTSA 5-Star Safety Ratings

1 tested variant
NHTSA has not published 5-Star Safety Ratings for the 2018 Porsche 911 GT3 as of Nov 11, 2026.
Data from NHTSA NCAP Safety Ratings API · synced Nov 11, 2026Vehicle 12728
07 —Maintenance

Maintenance basics

General guidance, not the OEM schedule. Check your owner’s manual.
General guidance
ItemMilesTimeNote
Engine oil & filter5,000–10,000 mi6–12 monthsFollow the oil-life monitor if fitted
Tire rotation5,000–7,500 miEvery oil changeCheck pressure monthly
Engine air filter15,000–30,000 mi1–2 yearsSooner in dusty areas
Cabin air filter15,000–25,000 mi1–2 years
Brake fluid—2–3 yearsAbsorbs moisture over time
Coolant60,000–100,000 mi5–10 yearsLong-life coolants last longer
Spark plugs60,000–100,000 mi—Iridium/platinum plugs at the long end
12V battery—3–5 yearsHeat shortens battery life
  • Engine oil & filter5,000–10,000 mi
    6–12 months
  • Tire rotation5,000–7,500 mi
    Every oil change
  • Engine air filter15,000–30,000 mi
    1–2 years
  • Cabin air filter15,000–25,000 mi
    1–2 years
  • Brake fluid—
    2–3 years
  • Coolant60,000–100,000 mi
    5–10 years
  • Spark plugs60,000–100,000 mi
    —
  • 12V battery—
    3–5 years
Typical intervals for modern cars. Severe service (towing, short trips, extreme heat or cold) shortens them.
09 —FAQ

2018 911 GT3 questions

How many recalls does the 2018 Porsche 911 GT3 have?

1 safety recall as of Nov 11, 2026, according to NHTSA. Recall repairs are free at a dealer. Check your VIN to see whether your car is included and whether the repair was done.

What are the most common 2018 Porsche 911 GT3 problems?

Owners filed 2 complaints with NHTSA. The most-cited components are back over prevention (1), electrical system (1). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.

What MPG does the 2018 Porsche 911 GT3 get?

The EPA rates the 2018 Porsche 911 GT3 at 16–17 mpg combined, depending on engine and drivetrain (3 versions rated).

Data from NHTSA & EPA · synced Nov 11, 2026