On my Elantra, it was owned for 10 years by an elderly woman who never drove it hard.. first thing I did was put 91 non ethanol with 8oz of mmo in the tank and let er rip.I get concerned re ring ridge... When an engine is not regularly spun-up, the max travel of the pistons and specifically piston rings is not as high (or as low) along the respective cylinder bores
.. and when you DO spin it up, the rings can crack... when hitting the ridge. At least that's the theory. Not sure though that a moderately worn engine actually generates much of a ridge in any case...
It did not burn a drop oil and it ran way better after multiple 6150 redline shifts. Now on the daily it might see 5000 just to accelerate up to speed, and on ramps on the thruway are full redline shifts up to merging speed. Every day that passes it wakes up more and more as I continued the 91 non ethanol with mmo in tank, plus did a ton of maintenance such as a 3x3 transmission service, spark plugs , wires, air filter, brakes and rotors, uhp tires and a lot more.
I believe if you take care of your car and keep up on fluid changes and mechanical issues a redline here or there is good/beneficial for it.
To note I’ve driven other cars that just felt “slow” and the throttle had no feedback because the owners never open them up so the computer adjusts to that type of driving yet after I drive it then give the car back they tell me how much better the car drives and how much better the pick up is.