I am planning to buy a new car and my thoughts to keep the engine to last for longest period of time in great condition are to change the oil with fully synthetic oil every 3000 KM, deleting the EGR valve and pvc in order to let only fresh clean air to go inside the engine, and flush the engine every 2 time of oil change
Is this good for the engine?
Thanks boss
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No. In the best case the engine won't run right. In the worst case you'll destroy it.
Maybe, but deleting the EGR and PVC vales is illegal. If it's a new car, it will totally screw up your computer..
Don't delete the PVC, without crankcase ventilation pressure will built up inside the crankcase and blow seals. Likewise if the engine is equipped with an EGR valve that's part of an integrated engine management system and removing it is going to cause problems. (Many modern engines don't have EGR any more and use valve overlap instead.)
With modern synthetic oils a 3000km change intervals is way overkill but won't hurt anything, it's just a waste of money. I think in real measurement that's something like 1800 miles. (That's the kind of oil change interval we used to do back in the dark ages when we had low-detergent single-weight oils, carbs dribbled excess leaded gas into the crankcase, and many engines did not even have oil filters.)
Chuck. I got the impression he was going to delete the PCV and use one of those small breather filters over the valve cover hole and cap off the vacuum at the intake manifold. No pressure problems then, just more air pollution.
Possibly, but I could see someone not understanding the importance of the PCV system just plugging the system up. What you're describing is almost like the old road draft tubes used prior to the adoption of PCV except pressure would be released up in the valve cover rather than lower down in the block. However that would not have the benefit of air movement under the car to extract fumes from the crankcase while the car is moving.
It's a bad decision either way that will cut short rather then lengthen engine life.
Yes. Deleting the pvc and using filter for ventilation. And also tuning the computer for sure
At best the engine will run poorly, at worst you'll damage it. (There's a reason that in the old days there were road draft tubes down low on the engine used for ventilation before PCV was developed.) Best to keep those systems in good repair to assure longest engine life.
That is correct. I would much rather have the PCV connected and have manifold vacuum recirculate the blow by fumes back into the engine.