Car Maintance Tips for 1st time car owners

Hi guys,

For the past two years, I've been trying to properly maintain my car—an old Nissan Sunny. I've done a lot of research and learned quite a bit along the way. I thought I'd share some of the things I've concluded so far, especially for first-time car owners since there are always a lot of car maintenance questions in this group.

I'm still learning, so any corrections or additional tips are welcome.

1. General Maintenance

Always change your engine oil, oil filter, and air filter on time. If your car uses conventional oil, aim for every 5,000 km.

For newer vehicles, use the manufacturer's recommended oil. For example, if it's a Honda, use Honda-approved oil; if it's a Toyota, use Toyota-approved synthetic oil. I also recommend reducing the manufacturer's service interval by about 1,000–2,000 km because of the dusty conditions we drive in.

When experiencing suspension-related issues, take your car to a Shell station with an oil bay (preferably a less busy one) and have them inspect the suspension components. Check things like bushes, CV joints, ball joints, and tie rods. Some mechanics may recommend replacing parts that don't actually need replacing, so having an idea of what's worn out before visiting a mechanic can save you a lot of money.

2. Suspension

Before every service, inspect your suspension. You can also visit AutoXpress or a Shell oil bay, where suspension inspections are often done for free.

If a bush, tie rod, or ball joint is worn out, replace it as soon as possible. Where possible, use OEM or high-quality aftermarket parts.

The suspension works as a complete system. When one small component fails, the other parts have to compensate, which accelerates wear and increases repair costs later on.

I emphasize OEM-quality parts because our roads are rough. Suspension components generally wear out much faster here than they would in developed countries, so it's worth investing in quality parts that can withstand local conditions.

3. Cooling System

I'm still researching this area, but one thing I've learned is: use coolant, not plain water.

Many people say coolant is only necessary in cold countries, but that's not true. Coolant not only regulates temperature but also helps prevent corrosion inside the engine. Water alone can cause rust and scale buildup over time.

Check your coolant regularly. If it looks dirty or sludgy, replace it and flush the cooling system. Many overheating issues are caused by partially blocked radiators.

As a general guideline, consider replacing coolant and servicing the radiator every 3–5 years. This can help prevent expensive repairs such as blown head gaskets, radiator replacements, and cooling system failures.

Also inspect your fan belts throughout the year. Look for cracks, excessive wear, or coolant leaks around the water pump area, as these can indicate a developing problem.

One thing I'm still trying to understand is coolant pricing. There are coolants ranging from KSh 400 to over KSh 3,000 for 5 litres. For example, Shell coolant can cost over KSh 3,000, while some brands sold at places like Impala Autos cost around KSh 400–1,500.

If anyone understands what distinguishes these products beyond branding, I'd appreciate the explanation.

4. Gearbox

If your vehicle has a CVT transmission, always use the manufacturer's specified CVT fluid and buy it from an authorized dealer where possible.

Don't wait until the recommended maximum interval to change transmission fluid. Service it earlier.

This is especially important for ex-Japan vehicles. Many cars are exported to countries like Kenya before major maintenance is due, and sometimes transmission fluid has gone unchanged for a long time.

5. Sourcing Spare Parts

For suspension parts, I usually buy from Impala Autos. They've been reliable for me so far, especially for Japanese vehicles.

The more complicated area is sourcing ex-Japan parts. If you own an older vehicle in Kenya, some components can only realistically be found as ex-Japan imports.

I'm talking about parts such as alternators, AC compressors, valve covers, and other components that often last the lifetime of the vehicle.

I've personally used JVM because you only pay after the part has been installed and tested.

For major components such as engines and gearboxes, I strongly recommend taking a trusted mechanic with you to inspect the part before purchase.

6. General Advice

If you're like I used to be—where your maintenance philosophy was simply "as long as the car moves"—start with learning how to do basic maintenance yourself.

For me, learning how to change my own oil opened the door to understanding many other parts of the car. Once you understand how the systems work, it becomes much easier to appreciate why maintenance matters.

In the long run, maintaining a car properly is usually far cheaper than constantly repairing one that's been neglected.

Questions for More Experienced Owners

1. How do you navigate the maze of ex-Japan suppliers on Kirinyaga Road and identify trustworthy sellers?

2. How do you choose the best coolant, and what justifies the huge price differences between brands?