RX8 Servicing & Performance ProductsMazda RX8 Engine Tuning & Servicing Servicing for Mazda RX8s

Pettit Racing Protek-R: Cut Friction, Gain Power!

Protek-R for the RX8If we expect good longevity and top performance from our rotary engines it is clear that extra lubricant must be added to the fuel.

This is why; the oil metering system is responsible for lubricating the delicate apex seals, compression seals and housing surfaces that are common to every rotary engine. Oil is fed from the engine oiling system (oil-pan) to a variable ratio-metering pump, then it’s injected into the engine where it partially blends with the onrushing air-fuel charge.

This incomplete blending and fuel-to-oil ratios of 400:1*and higher are cause for alarm, but now add in unleaded fuels that are designed to cleanpiston engines, these fuels and the rotary’s high combustion temperature quickly clean away this small amount of oil leaving little or no lubrication. This causes increased friction and wear, resulting in decreased performance and longevity.

RotorWith over 25 years experience and more than 1000 rotary engines built, we know excessive wear on apex and compression seals as well as critical housing surfaces is caused from inadequate lubrication. What’s all this mean? Without proper lubrication friction, heat and today’s fuels will likely cause premature failure of some expensive engine parts, great for Mazda’s profits but not good for you and me.

By reducing friction and wear Protek-R can extend rotary engine life by 30% or more, depending on your driving habits and consistency of use. Protek-R blends completely with your fuel lubricating all critical surfaces, providing reduced friction and wear, adding longevity and keeping power.

In just one 24 hour race a Pettit Race Engine will get a lifetime of wear. With Protek-R in our fuel they show little engine wear compared to the average street engines we regularly disassemble.

TIP: In high wear situations (e.g. track or auto X day) use 2 "shots" of 120ml of Protek in your tank, along with premium fuel. For racing purposes Protek-R fuel lube is mixed with fuel at the ratio 100:1 or aprox. 1oz./gal of fuel. For everyday use, once measure of 120ml should be poured into the tank prior to filling with petrol.

WATCH: Video of Pettit testing PROTEK-R against its rivals

WATCH: Pettit testing PROTEK-R vs normal 2 stroke oil

Cut Friction Gain Power, use Protek-R!



Pettit Built engines are the only turbocharged rotary engines in racing history to finish the grueling Rolex24 at Daytona, could Protek be a factor? We think so! 

  • Here at Pettit Racing we know how important it is to keep your rotary engine running well, which is why Protek-R was developed.

  • For RX8 owners, some Renesis engines have weak or low compression, Mazda says “heat generated friction” is the cause, but since factory recalibration for the RX-8 ECU increases injected oil for the high revving Renesis; could they just need some Protek-R to help cut friction and reduce wear? We think so and that’s what Protek-R does best.

  • By adding just 4 floz / 120ml of Protek-R with a full tank of petrol, the fuel-to-oil ratio is improved by 100%, or 200:1 and better.

  • Benefits include:

  • Extended engine life

  • Reduced internal friction and wear                                      Less drag means more power

  • Added protection against rust and corrosion

  • Blends completely with fuel will not separate

  • Easier starting

  • Carbon free & 100% Synthetic


The Rotor Housings pictured below are out of 13b rotary engines Left housing has aprox. 80k miles with regular use of Protek-R fuel lubricant and would be reusable if not cut for this comparison.

The right rotor housing has only 60k miles. Several areas of wear prevent this housing from being reused.

  • The area just above the tralling plug-hole is scored and has uneven wear.

  • Chatter marks on the minor axis approaching the leading plug- hole.

  • Compression leakage from just before the leading plug- hole extending down several inches as indicated by discoloration in that area.

  • Chipped chrome from the apex corner piece near the exhaust port (not shown in picture)

Protek-R example


Multi-bottle pack - 4 x 500 ml

£33 + VAT *

3 litre jerrycan

£40.79 + VAT *

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* Fitting & shipping charged as extra. Prices subject to change and some items may be limited to stock on hand.

Whilst every effort is made to display prices as accurately as possible, Pettit UK reserves the right to refuse to honour any price that has been displayed in error.

Mazda RX8 Performance Parts & Servicing, London.

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Rotary specalists for over 25 years