Why is it needed to change the oil within the 1st 100 miles vs 3K?
there's all kinds of bad info on here. haha. nobody changes oil after 500 miles. not even Porsche (they do 1500).I saw in a previous post on the boards someone was considering buying an extra filter at delivery because they will be changing their oil at their 1st 500 miles and another said 100miles.
I would think that since its a new car you can wait till atleast the 1st 3K miles or 10K if thats what is suggested.,
yes. however, that is the old school. this is the new school. perhaps in American cars that all still applies, but not in the cars i buy. i'm looking at my service manual on my S5. first oil change is 5k. second oil change is 15k. it's a 354hp V8. it certainly won't hurt to change the oil at 500 miles or 1000, but it's certainly not required or even recommended by the manufacturer. new processes and materials.as with any car. you need to break it in. after the break in period you are supposed to change the oil. most break ins are 500 miles. do you know what happens during this?
the motor is honed at the factory. the pistons are installed with new fine edge rings. rings naturally wear out. where does the metal go? into the oil. because the cylinder wals are honed that leaves a rough wall to seat the rings with. improper break in. and you will notice that after about 10000 miles or so you will begin to burn oil. happens alot. if done right. you should break in your motor and change the oil to remove the metal that wore off the rings.
Way back when, cars shipped with "break in oil" that had to be changed withing the first couple hundred miles.Why is it needed to change the oil within the 1st 100 miles vs 3K?
i think you said it all with your "overly anal approach". old school always has a hard time adapting to new school, no matter what the subject. the owners manual is there for a reason. since maintenance is not included in the sales price, it would seem to be in their best interest to recommend an oil change at 1000 miles or 1500 miles if it was in fact necessary. they don't and it's not. argue on.A lot of German and Brit web site posting about how the MB sourced Smart Gen 1 and Gen 2 motors were needing rebuilds in the 60,000 to 80,000 mile range... hummmm
This will be a Mitsubishi all aluminum motor... at assembly it was run briefly on a motor test stand to pre set/bed the cams, checks the cam to lifter clearance, and function check the variable valve timing and do a re-torque...
This run in was NOT enough time or cold/hot/cold cycles to properly seat/bed all the bearings. It was NOT enough time cold/hot/cold cycles to mate the piston rings in the cylinder bores.
As these events are happening during your break in period... the oil is getting contaminated with many different metal shavings and any grit left in the metal pores from machine or honing processes...
I will be dumping the factory full synthetic oil as soon as I get home and putting in pure single weight dino oil for my personal break in procedure... there after I will be using Castrol syntech in the correct weight... I expect to use zero oil between changes and I most likely will create a motor that can withstand increased HP modifications and still last in the 250,000 to 350,000 like the majority of motors I have owned on last 35 years...
In my experiance... those who get new car motors and drive it like they stole it tend to be the same folks who complain about high oil use between changes... Some where between my overly anal approach, and the flog it till it breaks crowd, is a reasonable middle ground... your ride...you decide