Change the oil in your engine

Why frequent oil changes are a very good idea. The oil in this engine had not been changed in several years, which resulted in serious wear and ultimately a scrap engine.

On a seperate page, Frederick demonstrates how to do an oil change.

Removing the rocker cover revealed the state of the engine. Everything was coated with a thick black crust, and a thick layer of oil sludge sat on every horizontal surface. It's difficult to imagine how the oil still managed to circulate around the engine.

The oil and oil filter in a Renault 4 should be changed every 5,000 miles. Not doing so will break your engine as this photograph shows. This engine has since been dispatched to a scrapyard.

Oil sludge in a R4 engine  

This is what an engine looks like when it's been well looked after. It's the engine from Ermintrude the Renault 4. A very conscientious gentleman from London did an excellent job of looking after the car for a number of years and the engine is like new.

Be kind to your Renault 4 and change the oil.

Engine with clean oil

Back to Tech Tips

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Tech tips


How to do an oil change

Why oil changes are important

Starter motor

Clutch seizing


Replacing the points




Gas pressurised dampers

Fitting rear dampers

Front suspension lower balljoint

Brakes and hubs

Front brake discs

Rear brake shoes

Gordini wheel nuts


Frederick's angle grinder (RIP)

Very technical

Rear suspension jig

Torsion bar unloading tool

Building a full chassis jig

Dimensions for the chassis jig