Nissan

Qashqai and Juke diesel, shared with Renault. Guard oil quality and change intervals - that is the key to this unit’s longevity.

Qashqai and Pulsar petrol. Notorious for oil consumption and timing chain wear - checking oil at every fill-up is not paranoia.

The American workhorse from Altima and Rogue. Usual suspects: early catalyst failures, crank sensors, and coils.