- Joined
- Jul 28, 2024
- Messages
- 1,483
After your trip if you’re OCD or take it to 5k/6mon
A lot of people disagree with you on this one..Run it the full OCI but check the level regularly. You're not gaining anything by dumping perfectly good and new oil early.
Outside of higher-end sports cars, is there any automaker that officially documents early (break in) oil changes ?A lot of people disagree with you on this one..
Why don't they recommend it .I run all my new vehicles to 5k for first change or if oil gets low. My Caravan dropped a qt at 4500 so I changed it. 7 years and 40k not a drop lost in a year. Some been short or over 5k. Worked as a tech and newer vehicles with a few exceptions aren't recommended to be changed before normally scheduled maintenance. Vehicles with millions of miles still on the road without early changes on new vehicles.
That doesn't make them right . Just disagreeable .A lot of people disagree with you on this one..
Some manufacturers have a special lube that is used for engine break in. When I build an engine I use prelube on all the bearings, crank, camshaft etc. which gets mixed in the oil. Rollers and such don't require a beakin period nor do cams, and cranks. All this means is manufacturers believe that engineers have tested the engine and stand behind it. It is now a feel good oil change instead of recommended oil change. Corvette is an example as well as HellCat. of required oil change.Why don't they recommend it .
It’s one of those things where even if it’s not absolutely necessary, it’s still a good idea. I always come back to my first UOA with my Corvette, at 1100 miles on the factory fill. It had 2% fuel in the oil and thus it had thinned to a 5w20. That’s not ideal at all to go the full distance of 7500 miles if I had followed the OLM on that factory fill. The HTHS would have probably been about 2.7-2.8 and this engine really needs something closer to 3.5That doesn't make them right . Just disagreeable .
Any data to support their opinions?A lot of people disagree with you on this one..
There’s really no way to prove or disprove that an early oil change or lack of an early oil change would change the life of the engine. How would anyone be able to test this? But my point is that it absolutely does not hurt so why not do it even if it’s just a slight difference in engine life? I have already mentioned my first UOA above so that is one data point actuallyAny data to support their opinions?
Are you sure it's free ?1500 miles is fine. Nothing to lose by dumping the factory fill early
A data point: BMW continues to provide a free "running in service" at 1200 miles for M models where they change the factory filled oil and rear diff fluid. Doubt they'd offer this for free if there was no benefit to it?
https://bmwtechinfo.bmwgroup.com/sib_attachments/B000322 Attachment 4 MY23 maintenance M models 8_22.pdf
It has been suggested that BMW does this for the rear diff and the oil change is done just to make M owners feel they have a special car. M-cars also don't receive a special break in oil at the factory.1500 miles is fine. Nothing to lose by dumping the factory fill early
A data point: BMW continues to provide a free "running in service" at 1200 miles for M models where they change the factory filled oil and rear diff fluid. Doubt they'd offer this for free if there was no benefit to it?
https://bmwtechinfo.bmwgroup.com/sib_attachments/B000322 Attachment 4 MY23 maintenance M models 8_22.pdf
It's not about the oil, but what has accumulated in it from breaking in a brand new engine.Run it the full OCI but check the level regularly. You're not gaining anything by dumping perfectly good and new oil early.