2018 Honda CR-V Transmission & Axle Gear Ratios

Transmission gear ratios

The 2018 Honda CR-V comes standard with a continuously variable transmission (CVT) across all trims (LX, EX, EX-L, Touring). This CVT unit is designed to provide seamless acceleration and optimize fuel efficiency by constantly adjusting its ratios.

Available axle ratios

The 2018 Honda CR-V with its CVT uses a single final drive ratio across all trims, regardless of whether it's front-wheel drive (FWD) or all-wheel drive (AWD).

How to identify your axle ratio

For most modern vehicles, especially those with a single standard final drive ratio like the 2018 Honda CR-V, identifying the axle ratio is straightforward as it will be the one listed above. Honda typically does not use RPO codes on door jamb stickers for axle ratios in the same way some American manufacturers do, especially when there's only one option.

If you were looking for axle codes on other vehicles, you would typically check:

• Door-Jamb RPO Sticker (GM, Ford, Ram trucks): Look for a sticker on the driver's side door jamb. For GM vehicles, it will list a series of three-digit RPO codes. For Ford and Ram trucks, there might be a specific axle code designation.
• Axle Tag (Ford/Ram/Older Vehicles): Some vehicles, particularly trucks and older models, have a metal tag bolted to one of the differential cover bolts. This tag will often have the gear ratio stamped on it.
• VIN Decoder: Online VIN decoders can sometimes provide detailed specifications, including axle ratios, if applicable to the vehicle.

For the 2018 Honda CR-V, given the single final drive ratio, direct identification methods like RPO stickers or axle tags are not generally necessary or present for this specific information.

Towing vs MPG impact

When considering traditional geared transmissions and differentials, the axle ratio plays a significant role in balancing towing capability and fuel economy:

• Numerically Lower Ratio (e.g., 3.31, 3.55): A numerically lower axle ratio means the engine spins fewer revolutions per wheel rotation. This generally translates to better fuel economy on the highway because the engine is operating at lower RPMs. However, it also means less torque multiplication to the wheels, reducing towing capacity and acceleration.
• Numerically Higher Ratio (e.g., 3.73, 4.10, 4.30): A numerically higher axle ratio means more engine revolutions per wheel rotation. This provides greater torque multiplication, resulting in improved acceleration and higher towing capacity. The trade-off is typically worse fuel economy, especially at highway speeds, as the engine revs higher.

For the 2018 Honda CR-V, with its single 5.64:1 final drive ratio and CVT, this balance is managed by the continuously variable nature of the transmission itself. The CVT is designed to keep the engine in its most efficient operating range for optimal fuel economy while also being able to deliver power when needed for acceleration or light towing. The CR-V has a modest towing capacity, usually around 1,500 lbs, which is well-suited to its integrated powertrain design.

Common issues

The Honda CR-V's powertrain, particularly the CVT, is generally reliable. However, like any mechanical component, issues can arise.

• CVT Hesitation or "Rubber Band" Effect: Some drivers might experience a feeling of hesitation or a "rubber band" effect during acceleration, which is characteristic of CVTs. While not always an issue, inconsistent or pronounced hesitation could indicate a problem.
• CVT Fluid Degradation: Over time and mileage, CVT fluid can degrade. Regular fluid changes according to manufacturer recommendations are crucial to the longevity and proper operation of the transmission. Neglecting fluid changes can lead to premature wear and potential transmission failure.
• Noise from Transmission: Unusual noises such as whining or whirring from the transmission area could be indicative of internal wear or bearing issues. If you notice any new or distinct noises, it's advisable to have it inspected by a qualified technician.

Given that the CR-V uses a sealed differential unit integrated with the transaxle, common issues like "ring and pinion whine" or "limited-slip clutch wear" found in traditional separate rear-wheel drive axles are not typically applicable.

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