Automatic Roxor Transmission & OBD2 Monitoring: A Hands-On Review

The 2019 Roxor has garnered significant attention in the off-road community, and when I stumbled upon a deal for one equipped with an automatic transmission, I knew I had to jump on it. While an automatic wasn’t my initial preference, the value was undeniable. Having spent some time behind the wheel, I want to share my experiences, particularly focusing on the automatic transmission performance and my plans to monitor it using an OBD2 scanner, potentially similar to models like the AUTOPHIX 3500, for proactive maintenance.

Evaluating the Automatic Transmission in the Roxor

Initially, I was slightly hesitant about the automatic transmission, given the Roxor’s rugged nature. However, it has proven to be surprisingly capable. In typical driving scenarios, the transmission tends to upshift early, which can sometimes lead to the engine lugging, especially when cruising under 30 mph. Occasionally, this early shifting can cause a slight tire chatter before it downshifts again. It’s not a frequent occurrence, but noticeable.

The true test came when tackling steep and lengthy sand climbs. Here, the combination of the engine and automatic transmission truly impressed me. Starting in 4-high, utilizing the “L1″ setting (which effectively locks it in first gear), the Roxor climbed with уверенность. Traction, rather than power, became the limiting factor. The 29” stock Goodyear tires spun when pushed hard, but the engine never stalled. Switching to 4-low and L1 resulted in an incredibly slow crawl, ideal for rock crawling, although that’s not my primary focus.

The transmission also features an “L2” setting, which I suspect is designed as a non-overdrive mode for towing, possibly preventing shifts beyond 5th gear. Further investigation is needed to confirm its exact function. In 4-low, aggressive throttle input results in responsive shifting and downshifting without any issues. Similarly, in 4-high under hard acceleration, the transmission downshifts adequately. The early shifting behavior primarily manifests during slow, casual driving, which, unless detrimental to the transmission’s longevity, is a minor trade-off for reduced noise and vibration.

Enhancing Monitoring with an OBD2 Scanner

To keep a closer eye on the Roxor’s vitals, especially the automatic transmission, I’m planning to integrate an OBD2 scanner. While I haven’t yet decided on a specific model like the automatic obd2 aut-350, my intention is to use a Bluetooth-enabled OBD2 reader, similar to the Autometer Bluetooth OBD2 reader mentioned previously. This will allow me to monitor critical parameters such as engine and transmission temperatures, boost pressure, and RPM in real-time.

Alt text: OBD2 scanner tool connected to diagnostic port of a vehicle, used for car maintenance and performance monitoring.

Monitoring transmission temperature is particularly crucial for automatic transmissions, especially under demanding conditions like off-roading or towing. An OBD2 scanner provides valuable insights into the transmission’s operating health, enabling proactive maintenance and preventing potential overheating issues. Beyond transmission temperature, monitoring boost and RPM adds another layer of understanding of the engine’s performance and overall vehicle health.

Planned Modifications for Improved Roxor Experience

Beyond monitoring, I have several modifications planned to further enhance the Roxor’s usability and performance. Comfort is key, so a Rugged Ridge rear bench seat has already been installed, along with seat belts. This setup comfortably accommodates my 6’4″ son with ample legroom remaining, and still leaves sufficient cargo space behind the rear seat.

Alt text: Rugged Ridge rear bench seat installation in a Roxor, showcasing added seating and space efficiency for passengers.

A windshield is also a priority, and I’m leaning towards a glass option for its scratch resistance and the ability to add wipers. For recovery situations, a winch is next on the list. I’m considering a budget-friendly Viper winch, known for its reliable performance at a reasonable price point, paired with a Rough Country winch plate designed for the Roxor.

To improve the Roxor’s stance and off-road capability, suspension upgrades are being considered. Options include a shackle lift, add-a-leaf, or a front leveling kit. Currently, an add-a-leaf kit from Pro Comp, along with new u-bolts, seems like a practical and cost-effective solution to level the vehicle and provide a slight lift without excessive modifications.

Larger tires are also on the horizon. Moving to 31-32″ tires, combined with a stage one tune from Diesel Freak, should provide a noticeable power increase and improved off-road traction. Maintaining a smaller tire size is intentional to preserve maneuverability on tighter trails and avoid excessive body roll, aligning with an “old school” approach to off-road modifications. Finally, a lightweight lunchbox locker for the rear axle and potentially Warn unlocking hubs for the front are being considered for enhanced traction and off-road prowess.

Conclusion: Embracing the Automatic Roxor and Smart Monitoring

After 11 hours and 175 miles, my experience with the automatic 2019 Roxor has been overwhelmingly positive. The automatic transmission, while exhibiting early shifting tendencies at low speeds, performs admirably in demanding off-road situations. Coupled with planned modifications, including the integration of an OBD2 scanner for proactive monitoring of the automatic transmission and engine parameters, the Roxor is shaping up to be a highly capable and enjoyable off-road vehicle. The impressive 30 mpg fuel economy and the distinctive diesel engine sound are additional bonuses that further solidify my satisfaction with this machine.

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