Is doing this overkill on my part?

[szh]

Hi, all!

A question (or more) about one of my paranoid practices.

Whenever I buy a new car, after the break-in period (which has varied between 1k to 2k miles), I replace all the fluids associated with gears and "things in motion rubbing over surfaces". This typically means that I take the car in and have them replace the engine oil, oil filter, differential gear oil, power steering fluid and transmission fluid. I have done this to every new car I bought.

My crazy rationale is that moving parts and machined parts (even if micro-machined as in the case of the new Infiniti engines) will have some metal surface smoothing/burnishing and "burr removal" during the first few thousand miles of operation. This material will typically end up in the oils and fluids, so I change them (I don't do the engine coolant or brake fluid since it is not dealing with parts rubbing against each other).

Before I do this to my new M45, I thought I would ask the experts here on the forum. Is the above overkill? Would you do it? I am particularly concerned that maybe I should not do this to the transmission fluid - supposedly, these new transmissions (in the Q, M and G) are very well sealed and the less I do to open them, the better.

What do you all think?

Z

[PalmerWMD]

I agree with the motor oil early change,Indfinti engines take a long time to break in and a change at 1000 miles is a gfood idea but your car will break in and keep getting faster until at least 50,000 miles.

the rear diff not at 1000 miles tho, maybe at 10,000, transmission at 8-10,000 miles.I would bother with power steering maybe an earlier interval than recommended but not at 1000 miles.

Fred..

[maxnix]

A question (or more) about one of my paranoid practices.

Whenever I buy a new car, after the break-in period (which has varied between 1k to 2k miles), I replace all the fluids associated with gears and "things in motion rubbing over surfaces". This typically means that I take the car in and have them replace the engine oil, oil filter, differential gear oil, power steering fluid and transmission fluid. I have done this to every new car I bought.

Is the above overkill? Would you do it? I am particularly concerned that maybe I should not do this to the transmission fluid - supposedly, these new transmissions (in the Q, M and G) are very well sealed and the less I do to open them, the better. - Z

Dealer here exchanges fluid by sucking it out the fill tube. I don't think this would get it all out of the torque converter, but I don't know. No pan drop nor screen replacement. Surely there are lines that go to a cooler? If so, then a Snap-On (Sun) machine could do it.

[elwesso]

I believe the M45 transmission is sealed....

I read a suggestion on cadillacforums that you should drive the car hard during break in...... Maybe it helps it sorta break in faster.......

Although, on the cadillacs, there is a TSB on excess carbon on the rings, causing them to stick and not move around like their supposed to........

[szh]

I read a suggestion on cadillacforums that you should drive the car hard during break in...... Maybe it helps it sorta break in faster.......

My service rep at Frontier Infiniti recommended I drive the car hard for the first 2k miles since the transmission has an "adaptive learning" processor. It learns and adjusts shift points, etc., based on your driving habits. I figured I would wait till the Infiniti recommended break-in miles were done (1.5k miles) then get him to reset the tcu processor and do my spirited driving (also after getting the transmission TSB done).

Z

[szh]

I agree with the motor oil early change,Indfinti engines take a long time to break in and a change at 1000 miles is a gfood idea but your car will break in and keep getting faster until at least 50,000 miles.

the rear diff not at 1000 miles tho, maybe at 10,000, transmission at 8-10,000 miles.I would bother with power steering maybe an earlier interval than recommended but not at 1000 miles.

Fred..

Thanks for the comments, Fred! I will definitely do the engine oil and filter. Wasn't sure about the others ... but it seems like waiting for a bit more miles for them will not be a bad thing!

Z

[maxnix]

My service rep at Frontier Infiniti recommended I drive the car hard for the first 2k miles since the transmission has an "adaptive learning" processor. It learns and adjusts shift points, etc., based on your driving habits. I figured I would wait till the Infiniti recommended break-in miles were done (1.5k miles) then get him to reset the tcu processor and do my spirited driving (also after getting the transmission TSB done). - Z

Much better solution. Why have the transmision learn a driving style that is more aggressive than you use?

If it truly learns, then it should adapt as drivng style changes. Service manual, please!__________________Brian1995 Q45 & Q45t & 2000 Q45

Discover the power of the button!

[szh]

Much better solution. Why have the transmision learn a driving style that is more aggressive than you use?

Oops, I should have been clearer! I meant that I ws waiting to do my "normal" spirited driving habits till after the 1.5k mile break-in period. So the transmission is probably "learning" gentle habits right now!

Z