The 09G transmission, commonly found in Volkswagen vehicles, requires a specific type of automatic transmission fluid (ATF) for optimal performance and longevity. While VW recommends their own branded fluid (G 055 540 A2), there are suitable alternatives available, often at a lower cost. One such alternative is Aisin ATF, specifically designed for Aisin transmissions, the manufacturer of the 09G. This article explores using Aisin ATF as a Vw G 055 540 A2 Equivalent.
A recent drain and fill on a second-generation 09G transmission (in a 2009 Jetta) yielded approximately 2 liters of fluid. This seemed low compared to a previous experience with a first-generation 09G (in a 2006 Jetta), which yielded 3.5 liters. The low fluid level might have contributed to slight difficulty shifting into drive. After replacing the fluid with 3.5 liters of Aisin brand WS fluid, the shifting issue resolved.
Choosing Aisin ATF seemed logical, given that Aisin manufactures the 09G transmission. Using the manufacturer’s fluid often provides peace of mind and potentially better compatibility. The filled fluid was noticeably black with a red tint when held to the light, indicating it was due for a change.
The transmission fill plug, located near the electrical connector, is a T55 Torx. This design simplifies the filling process, making it a DIY-friendly task for those comfortable with basic car maintenance. After a short test drive (approximately 4.2 miles), the transmission performed flawlessly.
Another potential VW G 055 540 A2 equivalent is Pentosin ATF1 LV. It’s available online at retailers like Rock Auto, often at a discounted price, making it another cost-effective alternative to the VW-branded fluid.
Considering another drain and fill in the near future to further ensure the transmission’s health. Regular fluid changes are crucial for preventing premature wear and tear and maintaining smooth operation. While VW G 055 540 A2 is the recommended fluid, using a suitable equivalent like Aisin ATF or Pentosin ATF1 LV can offer comparable performance and potentially significant cost savings.
