Accidentally gone 13000 miles since last oil change

[Superflan]

life was quite bumpy the past year, that I just realized today that I went 21000km (13000 miles) on cheap 15w40 A3/B4 in my Mercedes Benz om605

I've been used to change oil and at 7500km due to WVO usage but for now it looks and sounds perfectly fine. I will change it next week and report back

 

[MRC01]

My guess based on similar situations reported here is no harm done. You can always take a 3 oz sample when draining it and send it to a lab for analysis, just in case you're curious. But if the results come back clean you may be tempted to run 20,000 km intervals!

 

[supton]

You should treat it like an automatic and refuse to change the oil, as it's too late now and the grit in the oil is now somehow better than new oil.

/s

 

[slacktide_bitog]

Get a UOA done

 

[nomas]

It's fine .

 

[53' Stude]

life was quite bumpy the past year, that I just realized today that I went 21000km (13000 miles) on cheap 15w40 A3/B4 in my Mercedes Benz om605

I've been used to change oil and at 7500km due to WVO usage but for now it looks and sounds perfectly fine. I will change it next week and report back

Member Stumpy went well over 12k on 15w40. I think you will be fine.

 

[JavierH19]

You're fine. Most run 15w-40 near that interval anyway. Maybe change at 10000km this time to clean a bit.

 

[incognito_2u]

life was quite bumpy the past year, that I just realized today that I went 21000km (13000 miles) on cheap 15w40 A3/B4 in my Mercedes Benz om605

I've been used to change oil and at 7500km due to WVO usage but for now it looks and sounds perfectly fine. I will change it next week and report back

Say 10 Hail Mary’s and 5 Our fathers. Add a little extra in the Sunday collection and all will be forgiven………

 

[tblt44]

No worries mate

 

[Lubener]

Say 10 Hail Mary’s and 5 Our fathers. Add a little extra in the Sunday collection and all will be forgiven………

A full confession should be performed.

 

[dnewton3]

Say 10 Hail Mary’s and 5 Our fathers. Add a little extra in the Sunday collection and all will be forgiven………

It's thus:

10 Hail Moly's and 5 Our Filters on BITOG.

 

[fantastic]

I would assume the oil did well & you probably racked up mostly highway miles since the timing flew by. A UOA would help determine how it did but 13k is up to the task for a 15w-40 A3/B4 in a car.

 

[nomas]

Don't waste your money on a UOA . You can't change what happened , which is probably nothing .

 

[fantastic]

Don't waste your money on a UOA . You can't change what happened , which is probably nothing .

If a UOA provides valuable information about how the oil contaminated & if 13k was easy on the oil couldn't they extend the 7500 interval & save the cost of a UOA?

 

[Tdbo]

Well, get it changed PDQ!
Also, put one of those stickers in the upper left corner of the windshield so you don't forget again.

 

[Superflan]

finally changed it. looked better than modern oils in modern cars, but I had for the first time seen something like a tiny amount of sludge around fuel filter internal orings

 

[Superflan]

I meant, engine oil filter

 

[SureshR]

finally changed it. looked better than modern oils in modern cars, but I had for the first time seen something like a tiny amount of sludge around fuel filter internal orings

Then I hope you filled with cheap conventional again, just change it out in say 5k km and then go back to your usual schedule.

 

[JimPghPA]

Superflan, here on bitog that is grounds for a 6 month suspension, LOL, just kidding.

 

[SureshR]

So a slight variation on a well worn question. Guy bought a car just before the lockdown, left it parked and then ran it with the factory fill oil for about a year more till he racked up just 5k miles .. after which the oil was changed before he’s offering it for sale. The engine looks clean to the extent I saw - no sludge or gunk on the dipstick. What are the long term implications? (Tiny NA 1.5 Honda ivtec gas engine)