Fuel Additive| Porsche Classic

Photo of multiple Porsche Classic Fluids.

Porsche Classic Fuel Additive

Drawing of vintage Porsche car, transmission

True strength comes from within

True strength comes from within, particularly when it comes to classic Porsche vehicles. It is even more important to keep an eye on what is on the inside of these cars. When classic cars are not used on a regular basis, or especially when they are stored during winter, the fuel is an important topic to consider. Fuel additive from Porsche Classic helps – with the “Made in Germany” quality you expect.

Petri dish with two small Classic Genuine Parts.

Effect of the additive

The fuel additive forms a protective layer between metal and fuel. This is a gentle process that protects the tank and fuel system against corrosion and deposits – even the areas that are not covered by the fuel, such as the air zone in the fuel tank. Special molecules in the additive form a corrosion protection layer throughout the fuel system, thus ensuring an optimal level of protection. Condensation that has already formed in the fuel system is bonded by the chemical elements and does not cause any damage.

The additive dissolves deposits and adhesions that have already been formed. We were able to prove this in several long-term tests in collaboration with the Porsche Development Centre in Weissach. A number of tests to determine the compatibility of the additive with materials that form Porsche Classic Genuine Parts were also successfully carried out.

Two images of parts of a fuel filler cap.

FAQs

Possible impact of not using the additive:

If your classic cars are left stationary for extended periods of up to seven months, condensation can form in the fuel system. This condensation can cause various components within the fuel system to corrode. The components of the fuel with a low boiling point can evaporate, resulting in a sticky residue on the carburettor and injectors, as well as on the electric pump. After the vehicle is left stationary for long periods, the engine may no longer start, may jolt or may not fire on all cylinders.

What amount of additive is recommended?

The 300 millilitres of Porsche Classic fuel additive supplied in the container is sufficient for fuel tanks ranging from smaller ones such as the 50-litre tank in the Porsche 356 up to larger tanks with a capacity of 90 litres, such as in the Carrera GT. The fuel additive remains effective for stationary periods of up to seven months and its performance only begins to gradually decline after this length of time.

The Porsche Classic fuel additive can be used in all classic Porsche cars. What’s on the inside counts when it comes to optimum car care – and as you would expect, we leave nothing to chance in this respect.

The Porsche Classic fuel additive is available under part number 00004420602 and for the US-variant under 00004420622.

There may be delays in availability in some countries. Further information can be obtained from your Porsche Classic Partner or at your Porsche Centre.

Genuine parts for the fuel system

Fuel system, 62 litres

For all 911 F models from model years 1969–73. Manufactured using the optimised original tool and the original production techniques: the 62-litre fuel tank. Part number: 91120190402.

Fuel filter

For all 924 models from model years 1978–85, 924 Turbo models from model years 1979–82 and 928 models from model years 1978–95. Part number: 93111014904.

Fuel pump

For all 911 F models from model years 1972–73 and 911 G models from model years 1974–77. Part number: 91160811006.

Fuel hose

For all 911 G models from model years 1980–83 and 911 Turbo models from model years 1980–83. Part number: 91135608701.

Fuel tank cap

For all 911 G models from model years 1974–89. Part number: 91120127200.

Sealing cap for fuel tank

For all 356 models from model years 1948–65. Part number: 64420127000.

Spare parts & Co.

A person is leaning over the open engine compartment of a white Porsche 911 G model; an open tool bag is lying on the ground next to it.

New for your classic car

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Historical Fabrics

A first encounter with a Porsche is unforgettable, thanks to its distinctive design and iconic interior fabrics. These original-quality materials are now available again, enabling authentic restoration of classic models.

Close-up of the rear tyre of a classic Porsche in silver with Fuchsfelge® (Fuchs wheel), on cobblestones.

Porsche tyre approvals

Porsche regularly publishes lists of approved tyres for vintage cars and recent classics. For this purpose, more than 150 different sets of tyres are tested in a wide variety of disciplines, on the relevant original vehicles.

Front view of a classic 911 with headlights turned on, shining beams of light in a dark environment.

Let there be LED light.

Illuminate your drives with a LED retrofit solution for classic vehicles. Adding a modern touch and improved visibility, the LEDs are now available for selected classic models.

Woman holding key case made of brown leather in her hand. A Porsche is in the background.

Accessories for your classic car.

Feed your Porsche passion. The Porsche Soul Garage products will transform your favourite space into a place of living, breathing, sports car greatness. With carefully selected highlights and accessories, inspired by historical Porsche designs.

Dashboard motif in the interior of a Porsche 997 with PCCM Plus installed in AppleCar Play view.

Infotainment system

Available now for all vehicles up to model year 2008: the new Porsche Classic Communication Management Plus systems (PCCM Plus) for 911 (type 997 I) and Boxster/Cayman (type 987 I) as well as the first-generation Cayenne. They complement the already familiar devices with 1-DIN slot (PCCM) for Porsche classic cars and in 2-DIN format (PCCM Plus) for 911 (type 996) and Boxster (type 986). Get to your destination easily, conveniently and without traffic.

Accessories in a green tartan pattern standing next to and on the rear of a green, classic 911 Turbo

Special limited edition '50 years of 911 Turbo'

We are celebrating five decades of speed, excitement and thrills. Fifty years ago, the historical tartan pattern found its way into a Porsche for the very first time with the Turbo. It now adorns our limited '50 Years of 911 Turbo' accessories collection.

911 type 996 with black Fuchs rims in an urban setting.

Fuchsfelge® (Fuchs wheel) for your classic car.

Wheels of fortune. The legendary Fuchsfelge® (Fuchs wheel) returns: The new development in a retro look is available for selected derivatives of the 911, type 993 and type 996, and the Boxster type 986.

Pack shot of Porsche Classic Motoroils including machine cleaning cloth on a workbench in a garage.

Engine oils

For the love of your classic Porsche engine: the engine oils, which are specially tailored to the needs and properties of the various classic Porsche engines, were developed by the engineers at the Porsche Development Centre in Weissach together with the classic experts.

911 Carrera RS 2.7 with Carrera livery in an industrial environment.

Spare parts and accessories for the 911 Carrera RS 2.7

Real legends never age: On the occasion of its 50th anniversary, the Porsche 911 Carrera RS 2.7 is just as inspiring and fascinating as when it was presented in 1972. To continue enjoying the unique driving experience of one of the fastest German production cars of its time, numerous products are available for fans and drivers of the famous 911 with a ducktail.

Fuel additive

Using the right fuel is always important, even when your classic car is not out on the road. That’s why Classic Fuel Additive is available for all classic Porsche vehicles.

356 A brake drum

356 – a number that has been sparking excitement among sports car enthusiasts since the 1950s. And to ensure that this remains the case for model 356 A owners, we have reworked the brake drum specifically for these classic vehicles. The complex manufacturing process from one forged blank and Porsche’s high-quality standards make a significant difference compared to other spare parts on the market.

Detail shot: entrance with Porsche turbo interior, Grey car seat, Porsche floor mat.

Accessory highlights for your 996

The Porsche 996 represents a decisive turning point in Porsche's history because in 1998 it received a new, water-cooled six-cylinder boxer engine instead of an air-cooled one. So it's no wonder that the 996 is still one of the most popular classics to this day – and that there is a wide range of interior and exterior accessories for it.

Detail shot: Green shock absorbers for the 993, a Porsche Carrera in the background.

993 shock absorber

New shock absorbers, traditional driving pleasure: The shock absorbers for the 993 strike the fine balance between sport and comfort by providing a sensitive setup while maintaining the tuning of the time. Nothing was left to chance with this new edition: Porsche developers worked closely with the shock absorber experts from Bilstein, which provided parts for the Porsche 993 RS back in the 90s.

Garage view: Porsche Classic, man cleans a Red Porsche vintage car with a cloth.

Car care set

The relationship you have with your Porsche is something very special – and long-term relationships need special care and attention. The Car Care Set for classic vehicles consists of 17 parts and has everything you need for a perfectly polished exterior. It can be used for all generations of Porsche paintwork and comes in a high-quality storage bag with a Pepita or tartan pattern.

Four images of different Porsche Crests.

Original Porsche Crest

The crowning piece of every classic: the Original Porsche Crest. After extensive research, classic experts from Porsche have succeeded in having the Porsche Crest manufactured and produced true to colour and material – and in Germany, of course.

Detail shot: wing, gloved hands with light tool.

Body and lightweight parts

The shapes of yesterday meet the technology of today. With this combination, the classic experts from Porsche have succeeded in substantially improving the production quality of Porsche wings and side panels. All parts are hand-manufactured with precision and are subject to the strict Porsche standards.

Detailed section: Speed Yellow Porsche, hub cap.

Original hub cap

Obsessed with detail? Then the original hub cap for the 911 F and 911 G models is perfect for you and your classic Porsche car. The handcrafted and hand-painted hub caps are available with an original coloured or black Porsche Crest and are shipped in a high-quality box in the original style.

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