Black Mercedes-Benz sedan driving at sunset

All fuel engines

X-Caps: get more from the fuel you already pay for.

Drop the caps in your tank at fill-up and drive as normal. Then let your own logbook show you the difference.

1 cap = 12–20 ℓSANS 342 dieselEPA registeredMade in USA

Order X-Caps Ask on WhatsApp

South African drivers noticed the difference

Deepa: over 150 km extra per tank in her Kia on daily drives to the Vaal; the car moves smoother. — Deepa · Kia · +150 km per tank

Chanya: Mercedes-Benz C270 diesel, less smoke and smoother; weekly diesel from about R1,000 to about R500. — Chanya · Mercedes C270 diesel

2012 Polo Vivo: about 600 km per tank before, then 839 km and 863 km with X-Caps. — Polo Vivo · 600 → 863 km per tank

Personal experiences. Results vary and are not guaranteed. Marketplace Global states X-Caps can help increase mileage by up to 8–12%.

How to use it: 3 steps

Fill up

Your usual garage, your usual fuel.

Add the caps

1 cap per 12–20 ℓ. Small car 2–3, sedan/SUV 3–5, big bakkie 4–6.

Drive & measure

Log 3 tanks without and 3 with. Compare your ℓ/100 km.

Up to 8–12%more mileage, per the manufacturer

+1 to 1,5octane, helps reduce knock and ping

Less smokeand emissions, per the manufacturer

All enginescars, bakkies, taxis, trucks, generators

Official MPGXtreme X-Caps flyer: fuel optimizing formula for all fuel engines, including diesel, each capsule treats 12–20 litres, EPA registered, compliant with SANS 342. — Manufacturer’s flyer (prices in US dollars; ask for the rand price).

Your questions, answered

Is X-Caps safe for my engine, and what about my new car’s warranty?

According to Marketplace Global, X-Caps is EPA registered (#298420001), made for all fuel engines, including diesel, and complies with the South African low-sulphur diesel standard SANS 342. Warranty terms differ between manufacturers, so if your car is still under warranty, check your service booklet or ask your dealer about fuel additives before you start.

How many caps do I use per tank?

One cap treats about 12 to 20 litres. That is roughly 2–3 caps for a small hatchback tank, 3–5 for a sedan or SUV and 4–6 for a large bakkie tank. Always follow the instructions on the card.

Does X-Caps work in diesel?

Yes. X-Caps is made for all fuel engines, including diesel vehicles, from bakkies and minibuses to trucks, tractors and generators.

How much does X-Caps cost and where can I buy it in South Africa?

X-Caps comes in cards of 5 caps, in a 3-pack (15 caps) and a 6-pack (30 caps). You can order from Wilna’s Marketplace Global shop or send a WhatsApp to 061 515 1797 for the current rand price and delivery.

How soon will I notice a difference?

The manufacturer says X-Caps starts working immediately. The most reliable way to judge is over a few tanks: compare three tanks without and three tanks with X-Caps using the 6-Tank Test.

Are results guaranteed?

No. Every vehicle, route and driving style is different. Marketplace Global states X-Caps can help increase mileage by up to 8–12%; individual experiences vary. See Marketplace Global’s refund policy on the order page.

I’m Wilna. Don’t take my word for it. Test it with your own numbers.

A 3-pack (15 caps) covers the X-Caps half of the 6-Tank Test in most cars. A 6-pack (30 caps) suits two cars or a bakkie.

Order X-Caps Order via WhatsApp · 061 515 1797

Not ready? Start with the free 6-Tank Test kit.