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FORTEC Full Synthetic Gearbox Oil Spec R SAE 75W-90 GL-5 (2 x 1L Bottles) for Mazda RX-8 (Series 1 & 2, 2003-2012)

FORTEC Spec R 75W-90 GL-5 full synthetic oil supports smooth shifts and gearbox protection, with two 1L bottles for a practical service.

Mazda RX8 gearbox oil in two FORTEC Spec R 75W-90 bottles

$100

Mazda RX8 gearbox oil from FORTEC is a two-litre Spec R pack for manual transmission servicing. It suits Series 1 and Series 2 owners replacing aged fluid. The full synthetic SAE 75W-90 GL-5 formulation is designed to support shift quality and gearbox protection in normal or harder driving.

Mazda RX8 Gearbox Oil Features

  • The full synthetic formulation meets SAE 75W-90 and GL-5 specifications for gearbox use.
  • Each pack contains two 1L bottles, supplying two litres for a planned transmission fluid service.
  • The Spec R oil is intended for high-load transmission use during normal driving and harder use.
  • Fresh lubricant can support smoother shift quality when replacing fluid affected by age or heat.
  • Series 1 and Series 2 coverage makes this pack suitable for 2003-2012 RX8 models.

For rotary enthusiasts, Mazda RX8 gearbox oil in the correct service pack removes the need to source separate bottles. Separate 1L bottles can be easier to handle than a single larger container during a manual transmission service. Replacing old manual transmission oil can help restore a more consistent gearshift feel. The FORTEC 75W-90 gearbox oil format is a practical choice for routine maintenance or drivetrain work.

Pair this fluid service with the AUTOEXE Sports Clutch Kit when clutch work is already planned. Owners looking to buy RX8 gearbox oil can consult the American Petroleum Institute for general information on lubricant service classifications. This FORTEC Spec R oil pack keeps the fluid side of a manual transmission refresh straightforward.

Additional information

RX8 Model

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SKU FT-GO-GBX-S1S2 Categories , Types , , Brand:

Related RX8 Upgrades

This 75w90 gearbox oil is one of the best Mazda RX-8 upgrades you can make to your Series 1 (2003-2008) or Series 2 (2009-2012). Gearbox oil service upgrades are among the top Aftermarket mods you can buy from FORTEC for owners who want better performance and reliability from their RX8. If you are looking for rx8 75w90 gearbox oil for sale in Brisbane (QLD), Sydney (NSW), Melbourne (VIC), Canberra (ACT), Adelaide (SA), Darwin (NT) or Perth (WA), you’ll find high-quality Japanese Gearbox upgrades at RX8 Upgrades.

Frequently Asked Questions

Will FORTEC Spec R 75W-90 GL-5 gearbox oil fit my Series 1 RX8?

FORTEC Spec R 75W-90 GL-5 gearbox oil is listed for Series 1 RX8 models built from 2003 to 2008 with a manual transmission.

Is this gearbox oil suitable for a Series 2 RX8?

FORTEC Spec R 75W-90 GL-5 gearbox oil is suitable for Series 2 RX8 manual transmission servicing for 2009 to 2012 models.

How much gearbox oil is included in this pack?

FORTEC Spec R gearbox oil is supplied as two 1L bottles, providing 2 litres of full synthetic 75W-90 GL-5 lubricant.

What specification is FORTEC Spec R RX8 gearbox oil?

FORTEC Spec R RX8 gearbox oil is a full synthetic SAE 75W-90 lubricant with a GL-5 gearbox oil specification.

Can fresh gearbox oil improve shift feel in an RX8?

FORTEC Spec R gearbox oil is designed to support smooth shift quality and transmission protection. Replacing aged or heat-affected fluid can help restore more consistent shift feel.

Is FORTEC Spec R gearbox oil intended for harder-driven RX8s?

FORTEC Spec R 75W-90 GL-5 gearbox oil is intended for high-load transmission use in both normal driving and harder use.