The hard shifting from reverse to neutral and then drive suggests a problem within the transmission itself, such as:
* Low fluid: Check your transmission fluid level *first*. Low fluid is a common cause of shifting problems. If it's low, adding the correct type of transmission fluid (check your owner's manual) is necessary *before* considering additives. Adding Lucas without addressing low fluid is counterproductive.
* Worn clutch packs: The friction materials inside the transmission are wearing out, leading to slippage and hard shifting.
* Internal valve body problems: A problem with the valve body, which controls fluid flow, can cause these symptoms.
* Worn seals or gaskets: Leaks can lead to low fluid and subsequent shifting issues.
* Other internal damage: More significant internal problems might require a transmission rebuild or replacement.
Adding Lucas Transmission Fix is a gamble. While some people report temporary success, it often just masks symptoms, causing further damage by making the transmission work harder. The thick additive can clog valves and increase wear on the already stressed components. The temporary improvement might lull you into a false sense of security until the problem becomes far more severe and expensive to fix.
Instead of using Lucas, I strongly recommend:
1. Check your transmission fluid level and condition. If low, add the correct type of fluid specified in your owner's manual. If the fluid is dark, burnt, or smells burnt, that's a strong indication of internal problems.
2. Have a qualified mechanic diagnose the problem. A proper diagnosis will identify the root cause and allow for the appropriate repair. Ignoring the problem will likely lead to a more costly repair or even transmission failure down the road.
Using Lucas as a band-aid is a risky proposition. It's better to address the root cause of the shifting problem with professional help.
