3500 mile break in oil change

Zoo, to be fair you are comparing an engine designed in the 1950s, to a modern one.

There are plenty of LS motors in trucks with 300k miles.

 

Some manufacturers ship their cars filled with oils that have much higher Moly contents to help with the break in process. I usually keep my factory fill for 5k miles before I replace it with quality Synthetic + MoS2. At the second change (10k) I usually add Ceratec (good for 30-50k miles).

 

You should have reminded them that the manual recommends 5K oil changes for more “severe” service. I told them that I drive about 50% in the mountains for work (which is true) and I consider it on the more severe side (even tho I baby my baby). The dealer had no problem changing mine at 5K. I just had to waive my 5K service and used my free 10K service. I will be using my 20K service at 10K and hopefully never have to visit the dealer service bay again.

 

I was comparing my 2001 4.7 tundra engine to the 1998 gm 305 trucks we had. Imo, their wasn't that much difference in years between them. Just saying the oil in my 4.7 was clear looking after more than 15k miles while those 305's oil looked like tar in 3,000 miles....plus the gm engines got way more frequent oil changes, but the oil always looked real black.

 

You are comparing an engine family that was first installed in a production car in 1954, to one that was first used in 1998.

 

He’s also comparing an engine which used an Iron block and heads to one which uses aluminum which could be another reason the oil stays cleaner.

 

305 SBC is still an old engine design. Shit my 350 in my 1992 Sierra would have dark oil after driving around the block after changing the oil lol.

 

OP's oil filter looked much like mine did at 4500 miles. I even had an oil analysis done too. I was doing this yearly with the Liberty CRD for about 10 years so very fumiluar with Blackstone labs.

Definitely everything looks normal here's my oil analysis from the first oil change. Another will be done in a few months

 

i change mine in my 2016 every 6 months regardless of the low miles between oil changes. filter always looks black like the pic from the OP and the oil is black.
oil and filter are cheap. i guess i am stuck in my old fart routine.

 

If you want a roller coaster of fun regarding oil change intervals try this thread - https://bobistheoilguy.com/forums/threads/frequent-oil-changes-cause-more-wear.337688/

 

I just did my first oil change this past weekend at just shy of 1,200 miles.

Hopefully it wasn’t too early. Maybe I should have waited a little? What do you all think?

 

i did my first oil change at 1500 miles. i think 1200 should be fine. engine should be broken in by then.

 

Look at the super high Moly content in the above posted analysis. It's there for a reason, and the longer you have it in there the better your engine breaks in. Off the shelf oils don't have that much Moly in them, not even close (if any). 1200 is a bit too early for my taste, but you can still add a can of MoS2 from Liqui Moly to substitute the loss of Moly.

 

I’ve already been doing to many mollys, no thanks.

 

This moly is for your truck's pistons. Don't be selfish

 

I don't believe that is correct.

Moly is an ANTI-wear additive designed to prevent wear. It is also a major component of assembly lube for just that reason.

The question is if the factory fill is full of moly for a reason, or if when the motor is initially assembled they use assembly lube that contains a bunch of moly and hence your first flush is also full of moly. If its in the assembly lube then the purpose of the moly is gone within a few minutes (seconds?) of running.

 

Good god, not another oil thread. When was the last time anyone, and I mean anyone had an oil related failure?

 

I know we are referencing the oil report I posted. Yeah the Moly is way high. I don't think I changed mine too soon. reasoning is that 5000 miles is the severe service schedule and I do some of the use behaviours to put me in that schedule. What I have seen and heard discussed is that most manufactures don't use a special breaking oil any longer, they just use the oil they spec for regular use in the engine. if that's so it would have been

$98 toyota's 0w20 toyota case of 12 quarts full synthetic 0W-20 oil

toyota's 0w20 that is likely made by Mobil. That would support the extra moly being from assembly lube which would not be washed out until the first drain interval.

To each his own on oil change preferences. I think under a few thousand is too soon to change it but I'm no expert on cars, I've only owned and cared for several in my life for 5-10 years each and never lost one due to an oil related issue.

 

I got them to change my oil a bit over 5k, but it was after a year.

 

Point being, if moly is in the assembly lube and not the oil then it isn't a component of the break-in-oil and just a byproduct of assembly that shows up in the first UOA. Leaving it (moly) in, or taking it out, likely does not change the break in in any way.

Folks do lots of things with regards to oil and never lose an engine due to oil related failures. In fact its likely anyone here could follow either ends of any and all oil advice here on TW and never once experience any ill effects from doing so (well, maybe, this place is dumb so someone has likely argued for avocado oil around here). Oil life is massively overblown as a topic, and it is only done so because it is one of the very few items we can actually control on our vehicles. Far more vehicles would survive far longer with rust coating, driving lessons, or putting ones damn phone down, then will ever be by the oil arguments on any automotive forum.