Longest hybrid oil change interval?!?

[Mavster Mechanic]

I certainly wouldn't want to purchase a vehicle with 10K+ oil change intervals no matter what Blackstones reports say.

But.... you did!

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[Ranko Kohime]

I certainly wouldn't want to purchase a vehicle with 10K+ oil change intervals no matter what Blackstones reports say.

In 1885, with tolerances and oil being what they were, 3,000 miles between oil changes was likely to result in a severely damaged engine, if it lasted that long.

By the 1950s, 3k miles was standard, as engine tolerances decreased, the oil became less polluted by blow-by, and advances in oil formulas allowed the oil to endure for longer periods without breaking down. (As an aside, I would have been interested to see modern day testing on a 1950s engine running 1950s oil, and 1950s gasoline. I wonder what tetra-ethyl lead did to test results...)

Could there have been no significant advances in either technology in 75 years?

I think that 10k changes are probably erring on the conservative side these days, and it's much more likely that it's to get people in for other things. (tire rotation, washer fluid fills, etc).

Is anyone running a "normal" duty cycle, driving ~10 miles each way to work, occasional grocery store run, ya' know, average driving, but also submitting oil samples? I'd be interested to see what they recommend as far as extended intervals for that type of driving.

 

[svogt302]

But.... you did!

No I did not..,
I'm referring to one that had their actual oil changed at this intervals, wise ass...

 

[Chops]

I didn't, I must've forgotten to write down the delta, but it was changed at 99,177.

Ah - the first row on your report is incorrect. That is user input designed to let Blackstone know how many total miles are on the sample you send in…

I would love to see Blackstone’s comment if they realized you had almost 100,000 miles on that 7 month old oil! Whatever oil brand you used might want you to write a testimonial on the robustness of their product

What oil did you use? Wonder if most major brands can stay that robust after 100,000.

You are an outlier, however. And you changed at 7 months.

 

[Chops]

In 1885, with tolerances and oil being what they were, 3,000 miles between oil changes was likely to result in a severely damaged engine, if it lasted that long.

By the 1950s, 3k miles was standard, as engine tolerances decreased, the oil became less polluted by blow-by, and advances in oil formulas allowed the oil to endure for longer periods without breaking down. (As an aside, I would have been interested to see modern day testing on a 1950s engine running 1950s oil, and 1950s gasoline. I wonder what tetra-ethyl lead did to test results...)

Could there have been no significant advances in either technology in 75 years?

I think that 10k changes are probably erring on the conservative side these days, and it's much more likely that it's to get people in for other things. (tire rotation, washer fluid fills, etc).

Is anyone running a "normal" duty cycle, driving ~10 miles each way to work, occasional grocery store run, ya' know, average driving, but also submitting oil samples? I'd be interested to see what they recommend as far as extended intervals for that type of driving.

Modern oils have improved exponentially. Modern engines - not so much.

Blackstone & SPEEDiagnistix both recently recommended a 3,000 mile interval for my next oil change.

 

[Ranko Kohime]

Ah - the first row on your report is incorrect. That is user input designed to let Blackstone know how many total miles are on the sample you send in…

I would love to see Blackstone’s comment if they realized you had almost 100,000 miles on that 7 month old oil! Whatever oil brand you used might want you to write a testimonial on the robustness of their product

What oil did you use? Wonder if most major brands can stay that robust after 100,000.

You are an outlier, however. And you changed at 7 months.

Ehh, incorrect, I changed at less than 2 months. The header shows, and Blackstone accepts, 2 fields, the unit total mileage, and the mileage on that particular oil sample, which I forgot to put in, as I've done once before. They know the oil can't be more long-lived than 99,177 - 72,451, which was the last sample, and also the last change.

 

[Ranko Kohime]

Given the last report, I think I'll start with 30k oil changes. Maybe I'll make it to 100k oil changes eventually, if Blackstone doesn't get skittish.

I got 120k miles from the 70k-rated Bridgestone Ecopia's I ran on my Prius, I wonder how the 80k-rated Turanza's will fare, they're already at ~60k

 

[Chops]

In 1885, with tolerances and oil being what they were, 3,000 miles between oil changes was likely to result in a severely damaged engine, if it lasted that long.

By the 1950s, 3k miles was standard, as engine tolerances decreased, the oil became less polluted by blow-by, and advances in oil formulas allowed the oil to endure for longer periods without breaking down. (As an aside, I would have been interested to see modern day testing on a 1950s engine running 1950s oil, and 1950s gasoline. I wonder what tetra-ethyl lead did to test results...)

Could there have been no significant advances in either technology in 75 years?

I think that 10k changes are probably erring on the conservative side these days, and it's much more likely that it's to get people in for other things. (tire rotation, washer fluid fills, etc).

Is anyone running a "normal" duty cycle, driving ~10 miles each way to work, occasional grocery store run, ya' know, average driving, but also submitting oil samples? I'd be interested to see what they recommend as far as extended intervals for that type of driving.

Imagine running a modern engine on 1960’s oil. The modern engine would blow up quicker than a 1960 car on that same oil

 

[Chops]

Given the last report, I think I'll start with 30k oil changes. Maybe I'll make it to 100k oil changes eventually, if Blackstone doesn't get skittish.

I got 120k miles from the 70k-rated Bridgestone Ecopia's I ran on my Prius, I wonder how the 80k-rated Turanza's will fare, they're already at ~60k

As long as you keep changing your oil multiple times per year & your oil stays strong & clean - no reason for Blackstone to get skittish

 

[Mavster Mechanic]

In 1885, with tolerances and oil being what they were, 3,000 miles between oil changes was likely to result in a severely damaged engine, if it lasted that long.

By the 1950s, 3k miles was standard, as engine tolerances decreased, the oil became less polluted by blow-by, and advances in oil formulas allowed the oil to endure for longer periods without breaking down. (As an aside, I would have been interested to see modern day testing on a 1950s engine running 1950s oil, and 1950s gasoline. I wonder what tetra-ethyl lead did to test results...)

Could there have been no significant advances in either technology in 75 years?

I think that 10k changes are probably erring on the conservative side these days, and it's much more likely that it's to get people in for other things. (tire rotation, washer fluid fills, etc).

Is anyone running a "normal" duty cycle, driving ~10 miles each way to work, occasional grocery store run, ya' know, average driving, but also submitting oil samples? I'd be interested to see what they recommend as far as extended intervals for that type of driving.

With lots of highway driving, I've gone 20,000 miles in 6 months.

The used oil report was indistinguishable from the 10,000 mile analysis except the TBN went down some but was still above 2.

 

[Chops]

With lots of highway driving, I've gone 20,000 miles in 6 months.

The used oil report was indistinguishable from the 10,000 mile analysis except the TBN went down some but was still above 2.

MM, do you disregard your OLM like Ranko does? Still curious how soon Ranko’s OLM goes to 0%…within 3 months maybe?

 

[Ranko Kohime]

MM, do you disregard your OLM like Ranko does? Still curious how soon Ranko’s OLM goes to 0%…within 3 months maybe?

I posted in another page of this thread, but 2 weeks and less than 5k total miles, around 1,800 of which was deadhead, from OLM reset at oil change to 0% “change oil now!”. I won’t be changing it again until about 30k on the oil.

 

[Ranko Kohime]

Imagine running a modern engine on 1960’s oil. The modern engine would blow up quicker than a 1960 car on that same oil

Listening to Slick Talk, a podcast run by a Blackstone employee, the owner of Blackstone ran 70s oil in a 70s/80s engine, and it worked fine. I suspect if the lighter 0w20 the Maverick calls for was available in 1960, they may have made the engines tighter at that time, and the oil change intervals might well have been longer like they are now.

 

[Ranko Kohime]

After this oil change on 4-23, the truck sat for a week getting the battery replaced, was back on the road 4-30, OLM hit 0% at 104,998 (or 5,821 miles) on 5-12, 1,750 of those miles being deadhead (no trailer attached).

My next reset came at 110,396 miles, on 5–22. So I seem to be resetting it about every two weeks and 6K miles.

 

[scottjl]

yeah i change mine at 10k max no matter what the little meter says.

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