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Fuel systemPart report

2004 Mazda RX-8 Fuel system Problems

Complaints
39about this part
Share
8%of 490 total for the year
Median mileage
84,900miles
Trend
FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.

NHTSA recorded 39 complaints about the fuel system of the 2004 Mazda RX-8, 8% of the 490 complaints for this model year. Where a mileage was given, the median is 84,900 miles. 1 a fire, according to the filers. 2 recall campaigns on record are filed under a similar system.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“I purchased my 2004 automatic rx8 in september of 2011. It began giving me trouble with the type of gas it took. I finally figured out that bp premium seemed to keep it from coughing . I thought that I had fixed the issues and it drove fine for a good while. I changed the oil religiously at about 3000 miles or less. It would display the oil light after only about 1500-2000miles. I had a dealership look at it and they said the oil level was fine and they didn't understand why it had the light on. The oil light now comes on at just 300miles into the last oil change. …”

NHTSA complaint #10509740, filed 2013-04, 57,000 miles

“Problems with rotary engine starting. Usually happens at a temperature below 25 degrees fahrenheit. Poor ignition system for colder weather. I have had issues with it each winter I have owned the car(2004 to present day). A trip to the dealer has been necessary each time and while the warranty is still valid, this is an inconvenience but it's after the expiration is when I worry. A recall was noted and repairs were completed the fall of 2006 but the same thing happened yesterday. …”

NHTSA complaint #10178853, filed 2007-01, 34,000 miles

“2004 Mazda RX-8, under 45k miles. Driven on a 78 degree day for 2 hour trip. Stopped to refuel and 30 min shopping. Get into car onto highway where I need my engine's speed to accelerate onto highway. I feels like half the power is gone. It reminds me of vapor lock, it's gasping for fuel or spark. This has been experienced many times before and nearly dangerous when in busy traffic, as had to pull over to birm. I know dealer replaced coil packs once or twice so far...along with plugs. This is the most dangerous car I ever owned. The most re-called car I've ever known of. …”

NHTSA complaint #10325330, filed 2010-04, 43,123 miles

“The 2004 rx8 has internal seals fail prematurely. This causes the engine to blow by a loss of compression in one of the two rotor chambers. The problem being the car with still run with half power. I continued to drive to find help off the highway. The rotor that is not working is dumping gas into the catalytic converter. By the time I parked, I could smell burning fiber and plastic and the exhaust shot out several large chunks of red hot ceramic material. The catalytic converter was bright orange and the entire underside of my car is melted. …”

NHTSA complaint #10232284, filed 2008-06, 105,000 miles

“I want to go on file that I have a concern with the solution to a problem with our 2004 Mazda rx 8. We purchased it used from a reputable ford dealer several months back and had an issue with starting the car. After some online research we found out the car is prone to gas flooding when not allow to run until the temperature gauge is halfway. If shut off before the engine floods with gas. I took it to cory fairbanks Mazda where the VIN was checked and that the car did have the recall 4206f already done and the only solution to the problem is to let the car warm up. …”

NHTSA complaint #10275887, filed 2009-07, 35,000 miles

Related recalls

Related service bulletins

Fuel system: other model years

YearComplaintsShare of year
2009225%
2008212%
2007513%
2006712%
2005159%
2004398%

Other parts of the 2004 Mazda RX-8

Transmission and drivetrain
154 complaints
Engine cooling
106 complaints
Steering
80 complaints
Air bags
50 complaints
Electrical system
33 complaints
Engine
33 complaints
Body and structure
20 complaints
Other or unknown
18 complaints
Suspension
17 complaints
Visibility (wipers, defrost, mirrors)
16 complaints
Vehicle speed control
11 complaints
Equipment
10 complaints

← All problems reported for the 2004 Mazda RX-8

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology