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So I was wondering... what are peoples thoughts about running in a modern-day engine?
Years ago, a new engine would need an oil change after the first few hundred or a thousand miles or so to remove fine metal shavings from the oil that might occur as the engine beds in - in this situation, 'running in' makes sense... let the moving parts get to know each other gently to prolong their lifespan.
Nowadays, you don't need to service a new car until 21,000 miles (2.0d) or 16,000 miles (3.0d & SC) because the engineering is so much more advanced and the engine and moving parts, I assume, run smoothly from day 1. So do modern-day engines really need a run-in period?
Views seem to be mixed and I've even heard people say that stretching a diesel engine from day 1 opens it up nicely for a more sprightly performance in the longer run.
Personally, I go by the rule of not going over 2/3rds engine speed for the first few hundred miles (I might push this a handful of times! :lol
which means around 3-3,500rpm for a diesel engine and still allows for an easy drive as the torque is much lower down.
Years ago, a new engine would need an oil change after the first few hundred or a thousand miles or so to remove fine metal shavings from the oil that might occur as the engine beds in - in this situation, 'running in' makes sense... let the moving parts get to know each other gently to prolong their lifespan.
Nowadays, you don't need to service a new car until 21,000 miles (2.0d) or 16,000 miles (3.0d & SC) because the engineering is so much more advanced and the engine and moving parts, I assume, run smoothly from day 1. So do modern-day engines really need a run-in period?
Views seem to be mixed and I've even heard people say that stretching a diesel engine from day 1 opens it up nicely for a more sprightly performance in the longer run.
Personally, I go by the rule of not going over 2/3rds engine speed for the first few hundred miles (I might push this a handful of times! :lol