Is your classic car retiring for the winter? As we move into the colder months, dig out the big jumpers and pop the heating on, we’re looking at the best practices to protect your classic motor during hibernation.
The first consideration will often be what to do about fuel. We have done extensive testing on the negative effects of the ethanol found in modern fuel on our products. A range of upgrades have been made to SU carburetters over the years with material changes to prevent degradation - including our StayUp float range, Superdry jet bearing kits, Viton rubber seals and needle valves.
Alongside these improvements, it is advisable to take certain precautions when laying up your classic car for the colder months. Fuel can go stale in as little as one to two months. Ethanol is ‘hygroscopic’, meaning it attracts moisture directly from the air and condensation. This leads to separation, where the sitting fuel takes on too much water to keep the chemical bond in suspension. The ethanol and water sinks while the fuel floats to the top. To combat this, you can fill the tank to 95% capacity before putting it away for the winter to reduce condensation and tank rusting.
Fuel stabilisers are also available. Pouring these into the fuel system and driving to help circulate it through the tank, pump, line, and carb bowls is a good move. You can also top up your dashpots with our recommended oil and lightly lubricate all of your linkages and springs.
Many people will advise periodically going into the garage and idling your car for ten minutes throughout long periods of dormancy. This is a mistake. Ten minutes of idling doesn’t generate sufficient heat to evaporate condensation, and could potentially lead to damage. Instead, take the car on 30-minute runs on salt free roads or keep it laid up until Spring. When that time comes, clear the lines by diverting fuel into a receptacle before connecting to the carbs themselves.
A cool, dry garage is much better than a moist and warm one. You can further protect your classic car by using a purpose-made car cover, designed to be breathable and prevent condensation getting trapped. You can crack a window or two on the car for good measure.
Do everything within your power to give your classic motor sweet dreams this winter and fresh hopes of freedom for spring! If you are in need of further expert advice, our friendly SU team have over twenty years of experience and can be contacted here: https://sucarb.co.uk/contact/
