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Owners' resources

718 tyres and oil.

The 718 Boxster and 718 Cayman (type 982), from 2016, including the T, S, GTS, GTS 4.0, GT4, Spyder, GT4 RS and Spyder RS.

Shown: 718 Spyder in GT Silver Metallic

Which 718 is yours?

Choose your car for its tyre pressures, tyre sizes and oil on one sheet.

Choose your car above. Its pressures, tyre sizes and oil appear here, on one sheet.

718 · 2016 on

Boxster and Cayman

Cold tyres · check the label in your door frame

Tyre pressures

18-inch

Front2.0bar29 psiTyre235/45 ZR18
Rear2.0bar29 psiTyre265/45 ZR18

19-inch

Front2.0bar29 psiTyre235/40 ZR19
Rear2.1bar30 psiTyre265/40 ZR19

20-inch

Front2.3bar33 psiTyre235/35 ZR20
Rear2.3bar33 psiTyre265/35 ZR20

Winter tyres

Front2.2bar31 psiTyre235/45 R18
Rear2.2bar31 psiTyre265/45 R18

Engine oil

Grade0W-405W-40 also approved for 2017 to 2020 model years

2.0 or 2.5 litre turbocharged flat-four

Porsche approval
Porsche C40
Oil and filter change
Approx. 5.7 litres with filter
Notes and sources

18-inch

Standard pressure; Porsche gives no separate part-load figure. The 18-inch summer size is listed for the Boxster and Cayman, not the S.

Source: Porsche 718 Boxster and Cayman driver's manual (English edition WKD 982 00 20 18, 02/2017), Technical data; Porsche bulletin Approved Wheels and Tyres 982 (31/23)

20-inch

Standard pressure. Cars with the Comfort setting in the tyre pressure menu (it depends on the country) may run 2.1 bar (30 psi) front and rear up to 270 km/h.

Source: Porsche 718 Boxster and Cayman driver's manual (English edition WKD 982 00 20 18, 02/2017), Technical data; Porsche bulletin Approved Wheels and Tyres 982 (31/23)

Oil

The first handbooks (2017 and 2018 cars) list Porsche A40 with 0W-40, 5W-40 or 5W-50; Porsche's current oil list gives C40 for every 718. From model year 2021 Porsche allows 0W oils only. The level is read on the instrument display; minimum to maximum is about 1 litre. The handbook capacity covers the 2.0 and 2.5 engines, which the GTS (2.5) and T share.

Source: Porsche 718 Boxster and Cayman driver's manual (English edition WKD 982 00 20 18, 02/2017), Technical data; Porsche bulletins Allocation of Approved Engine Oils until MY2020 (12/25) and MY2024 (22/24)

718 · 2016 on

Boxster T and Cayman T

Cold tyres · check the label in your door frame

Tyre pressures

20-inch

Front2.3bar33 psiTyre235/35 ZR20
Rear2.3bar33 psiTyre265/35 ZR20

Winter tyres

Front2.2bar31 psiTyre235/45 R18
Rear2.2bar31 psiTyre265/45 R18

Engine oil

Grade0W-405W-40 also approved for 2017 to 2020 model years

2.0 or 2.5 litre turbocharged flat-four

Porsche approval
Porsche C40
Oil and filter change
Approx. 5.7 litres with filter
Notes and sources

20-inch

Standard pressure. Cars with the Comfort setting in the tyre pressure menu (it depends on the country) may run 2.1 bar (30 psi) front and rear up to 270 km/h.

Source: Porsche 718 Boxster and Cayman driver's manual (English edition WKD 982 00 20 18, 02/2017), Technical data; Porsche bulletin Approved Wheels and Tyres 982 (31/23)

Oil

The first handbooks (2017 and 2018 cars) list Porsche A40 with 0W-40, 5W-40 or 5W-50; Porsche's current oil list gives C40 for every 718. From model year 2021 Porsche allows 0W oils only. The level is read on the instrument display; minimum to maximum is about 1 litre. The handbook capacity covers the 2.0 and 2.5 engines, which the GTS (2.5) and T share.

Source: Porsche 718 Boxster and Cayman driver's manual (English edition WKD 982 00 20 18, 02/2017), Technical data; Porsche bulletins Allocation of Approved Engine Oils until MY2020 (12/25) and MY2024 (22/24)

718 · 2016 on

Boxster S and Cayman S

Cold tyres · check the label in your door frame

Tyre pressures

19-inch

Front2.0bar29 psiTyre235/40 ZR19
Rear2.1bar30 psiTyre265/40 ZR19

20-inch

Front2.3bar33 psiTyre235/35 ZR20
Rear2.3bar33 psiTyre265/35 ZR20

Winter tyres

Front2.2bar31 psiTyre235/45 R18
Rear2.2bar31 psiTyre265/45 R18

Engine oil

Grade0W-405W-40 also approved for 2017 to 2020 model years

2.0 or 2.5 litre turbocharged flat-four

Porsche approval
Porsche C40
Oil and filter change
Approx. 5.7 litres with filter
Notes and sources

20-inch

Standard pressure. Cars with the Comfort setting in the tyre pressure menu (it depends on the country) may run 2.1 bar (30 psi) front and rear up to 270 km/h.

Source: Porsche 718 Boxster and Cayman driver's manual (English edition WKD 982 00 20 18, 02/2017), Technical data; Porsche bulletin Approved Wheels and Tyres 982 (31/23)

Oil

The first handbooks (2017 and 2018 cars) list Porsche A40 with 0W-40, 5W-40 or 5W-50; Porsche's current oil list gives C40 for every 718. From model year 2021 Porsche allows 0W oils only. The level is read on the instrument display; minimum to maximum is about 1 litre. The handbook capacity covers the 2.0 and 2.5 engines, which the GTS (2.5) and T share.

Source: Porsche 718 Boxster and Cayman driver's manual (English edition WKD 982 00 20 18, 02/2017), Technical data; Porsche bulletins Allocation of Approved Engine Oils until MY2020 (12/25) and MY2024 (22/24)

718 · 2016 on

GTS 2.5

Cold tyres · check the label in your door frame

Tyre pressures

20-inch

Front2.3bar33 psiTyre235/35 ZR20
Rear2.3bar33 psiTyre265/35 ZR20

Winter tyres

Front2.2bar31 psiTyre235/45 R18
Rear2.2bar31 psiTyre265/45 R18

Engine oil

Grade0W-405W-40 also approved for 2017 to 2020 model years

2.0 or 2.5 litre turbocharged flat-four

Porsche approval
Porsche C40
Oil and filter change
Approx. 5.7 litres with filter
Notes and sources

20-inch

Standard pressure. Cars with the Comfort setting in the tyre pressure menu (it depends on the country) may run 2.1 bar (30 psi) front and rear up to 270 km/h.

Source: Porsche 718 Boxster and Cayman driver's manual (English edition WKD 982 00 20 18, 02/2017), Technical data; Porsche bulletin Approved Wheels and Tyres 982 (31/23)

Oil

The first handbooks (2017 and 2018 cars) list Porsche A40 with 0W-40, 5W-40 or 5W-50; Porsche's current oil list gives C40 for every 718. From model year 2021 Porsche allows 0W oils only. The level is read on the instrument display; minimum to maximum is about 1 litre. The handbook capacity covers the 2.0 and 2.5 engines, which the GTS (2.5) and T share.

Source: Porsche 718 Boxster and Cayman driver's manual (English edition WKD 982 00 20 18, 02/2017), Technical data; Porsche bulletins Allocation of Approved Engine Oils until MY2020 (12/25) and MY2024 (22/24)

718 · 2016 on

GTS 4.0

Cold tyres · check the label in your door frame

Tyre pressures

20-inch

Front2.4bar35 psiTyre235/35 ZR20
Rear2.4bar35 psiTyre265/35 ZR20

Winter tyres

Front2.2bar31 psiTyre235/45 R18
Rear2.2bar31 psiTyre265/45 R18

Engine oil

Grade0W-405W-40 also approved for 2020 model-year cars

4.0 litre naturally aspirated flat-six

Porsche approval
Porsche C40
Oil and filter change
About 7.5 to 8 litresfill in stages to the gauge
Notes and sources

20-inch

From Porsche's November 2023 tyre bulletin, the latest; its 2020 and 2021 bulletins gave 2.3 bar (33 psi). Comfort pressure, where the car offers it: 2.2 bar (32 psi) on the Cayman GTS 4.0 with PDK, 2.1 bar (30 psi) on the others.

Source: Porsche Manufacturer's Certificate 31/23, Approved Wheels and Tires, 982 (November 2023)

Oil

All four use the same engine, which has integrated dry-sump lubrication. Porsche does not print the refill quantity in the handbooks found; specialists quote about 8 litres, so add oil in stages and stop when the display shows full. Check the level with the engine warm and switched off for at least a minute.

Source: Porsche bulletins Allocation of Approved Engine Oils until MY2020 (12/25) and MY2024 (22/24); Porsche 718 Spyder and Cayman GT4 owner's manual (MY2021), Engine oil

718 · 2016 on

Spyder and Cayman GT4

Cold tyres, full load · check the label in your door frame

Tyre pressures

20-inch

Front2.0bar29 psiTyre245/35 ZR20
Rear2.3bar33 psiTyre295/30 ZR20

Winter tyres

Front2.5bar36 psi
Rear2.5bar36 psi

20-inch: 235/35 R20 front, 275/30 R20 rear, or 245/35 R20 front, 295/30 R20 rear

Engine oil

Grade0W-405W-40 also approved for 2020 model-year cars

4.0 litre naturally aspirated flat-six

Porsche approval
Porsche C40
Oil and filter change
About 7.5 to 8 litresfill in stages to the gauge
Notes and sources

Oil

All four use the same engine, which has integrated dry-sump lubrication. Porsche does not print the refill quantity in the handbooks found; specialists quote about 8 litres, so add oil in stages and stop when the display shows full. Check the level with the engine warm and switched off for at least a minute.

Source: Porsche bulletins Allocation of Approved Engine Oils until MY2020 (12/25) and MY2024 (22/24); Porsche 718 Spyder and Cayman GT4 owner's manual (MY2021), Engine oil

718 · 2016 on

Spyder RS and Cayman GT4 RS

Cold tyres, full load · check the label in your door frame

Tyre pressures

20-inch

Front2.0bar29 psiTyre245/35 ZR20
Rear2.3bar33 psiTyre295/30 ZR20

Winter tyres

Front2.5bar36 psi
Rear2.5bar36 psi

20-inch: 235/35 R20 front, 275/30 R20 rear, or 245/35 R20 front, 295/30 R20 rear

Engine oil

Grade0W-40

4.0 litre naturally aspirated flat-six from the 911 GT3

Porsche approval
Porsche C40 GT
Oil and filter change
Not published by Porscheadd it in stages and check the level
Notes and sources

Oil

Dry sump with a separate oil tank. Check the level on the display with the engine idling at operating temperature. The owner's manual printed in 2023 lists Porsche C40 (or VW 511 00); Porsche's oil list now gives C40 GT, a separate approval, for this engine.

Source: Porsche bulletins Allocation of Approved Engine Oils MY2024 (22/24) and Overview of Approved Porsche C40 GT Engine Oils (25/23); Porsche 718 Spyder RS and Cayman GT4 RS owner's manual (11/2023), Engine oil

Questions

OilDo all 718 models take the same engine oil?

No. Porsche's current oil list gives Porsche C40 0W-40 for the four-cylinder cars and for the GTS 4.0, GT4 and Spyder. The GT4 RS and Spyder RS use the 4.0 litre engine from the 911 GT3, and Porsche lists Porsche C40 GT for it, which is a separate approval. The first 2017 and 2018 handbooks name Porsche A40, but Porsche now lists C40 for every 718.

Source: Porsche bulletins Allocation of Approved Engine Oils until MY2020 (12/25) and MY2024 (22/24).

TyresWhat is the Comfort tyre pressure on a 718?

On 20-inch summer tyres, cars that offer a Comfort setting in the tyre pressure menu can run 2.1 bar (30 psi) front and rear at speeds up to 270 km/h. The option depends on the country. Select Comfort in the menu when you use it so the warnings match, and use the standard pressure if you will drive faster.

Source: Porsche 718 Boxster and Cayman driver's manual (English edition WKD 982 00 20 18, 02/2017), Technical data.

TyresWhere do I find the correct tyre pressures for my car?

On the tyre pressure label on the car itself, in the driver's door frame, and in the owner's handbook. The figures are for cold tyres, so check them before a drive rather than after one.

TyresWhy do some rows give more than one pressure?

Many of these cars have two sets of figures: part load, for up to two people and a little luggage, and full load. Where Porsche gives both, the main figures here are the full-load ones and the note under the row gives part load, and the Comfort pressure where the car has one. Use the figure that matches how the car is loaded, and check again when that changes.

OilWhy does the oil depend on which model I have?

Because the engine does. Most generations were built with more than one engine, and each has its own oil grade, Porsche approval and capacity. Two cars from the same year that look alike can need different oil, so look for your exact model in the oil section, not just the generation.

OilIs the oil grade all I need to check?

No. The viscosity grade (for example 0W-40 or 5W-40) is only half of it. The oil also needs the Porsche approval listed for your engine (A40, C40 or C40 GT, for example), which is printed on the bottle. Two oils with the same grade can carry different approvals.

OilHow often should the oil be changed?

Follow the service schedule in your handbook or service booklet. Many owners change it more often when the car is used on track, or does lots of short journeys that never let the oil get fully up to temperature.

GeneralWhere do the figures on this 718 page come from?

From Porsche's own documents, named and linked under each figure. Where Porsche's documents disagree, or no Porsche figure could be found, the page says To be confirmed rather than guess. If a figure here ever disagrees with the label on your car or your handbook, the car and the handbook are right.

Choosing tyresSizes, the Porsche N mark and what to ask for

Every 718 runs wider tyres at the rear than at the front, so the tyres cannot be swapped between axles. The Boxster, Cayman, S, T and GTS use 235 fronts with 265 rears: 235/45 ZR18 and 265/45 ZR18, 235/40 ZR19 and 265/40 ZR19, or 235/35 ZR20 and 265/35 ZR20, depending on the wheels. The GT4, Spyder, GT4 RS and Spyder RS use 245/35 ZR20 front and 295/30 ZR20 rear.

Porsche approves particular tyres for each size and marks them with an N code on the sidewall, next to the tyre's name, such as N0, N1 or N2. The code is part of the approval, so match it as well as the make and model: Porsche asks for the same make, type, speed rating and N code on the whole car, and treats the load and speed ratings in the handbook as minimums. Some approvals for the GT4 and Spyder family apply only to certain models, so check that a tyre is approved for your exact car.

Porsche recommends replacing tyres that are more than six years old, whatever the tread depth, and does not recommend repairs. If you replace a single tyre, its tread depth should be within 30 percent of the other tyre on that axle. Winter tyres have their own sizes and pressures, and snow chains fit only certain winter sizes, on the rear axle.

Every 718, side by sideAll the pressures and oils on one page, with their notes

Tyre pressures

Cold pressures from Porsche's handbook and tyre bulletins. Always check the label on your car's driver's door sill.

Engine oil

Porsche's current oil list puts the 718 range on two different approvals, so check which engine your car has.

Other ownersWhat a 718 service costs Other ownersTyre, oil and parts offers for the 718