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I think mobile delvac used to claim it was the million mile oil. didn't see that on the new bottles, now I saw rotella claimed like 400,000 miles. What's with the conversative numbers now?
what happened to the million mile claims?
- Thread starter The motor guy
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edyvw
$50 site donor 2025
Engines are becoming more complex. Numerous variables that can affect longevity where oil is not determining factor, but companies might be put on spot for it.
emissions standards and FA-4 
We have a fleet of 6 trucks. Honestly, the engines are junk now. Couldn't buy a good one if you tried.
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Well everyone on here acts like these new oils are the holey grail.emissions standards and FA-4
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Yeah, I agree. You can't tell if a noisy engine is from lack of maintenance or lack of engineering
The emissions systems are killing the engines early.
What engines? My last employer had Cummins and was considering trying Detroit in the next batch as the Cummins emissions systems were troublesome . Spent more time fixing them than driving them and with the new emissions laws they can't ignore a ck engine light any more.
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Time to move out of California
But yet vehicles going 200,000 miles and not leaving one stranded is not uncommon. I drove a million miles on the So Cal freeways, with strict pollution control in vehicles (as I am sure you know) and to see cars broken down on the freeway was very, very rare.
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2 PX-9 (ISL9), 2 DD8, MX-13 and X15. I really miss the days when we had an all cummins fleet of 8.3 and N14.
Gasoline emissions aren't as complicated as modern diesel emissions. We have EGR, particulate filtration and SCR. This would honestly be fine if they worked. What boggles my mind is so many faults will inhibit a regen, which causes more harm than the initial fault. Like the ubiquitous ambient air temperature fault. You can't even manually regen with a small fault like this. You have to fix the ambient air temperature sensor or connect a scanner and force a regen.
dnewton3
Staff member
Gasoline engines in the US will be having GPF (gasoline particulate filters) very soon. Some already have them (2025 Maverick?) I believe. This is partly due to the fact that DI engines produce more fine soot than a similar PFI engine.
As for the topic of the thread, why are HDEO oils not claiming such claims? Probably a fear of litigation.
I think we are comparing gas cars to semi trucks. Gas car emissions systems seem to be very good and added life to the engines by burning clean. HD diesel emissions are a pain. If it throws a code you have about 100 miles get it fixed or it will turn the truck off and it can't be driven until fixed and the problem cleared with the $500/ month subscription to the engine manufacturer data.
We had the ISL-9 which everyone hated due to lack of power and constant def problems. And the x15's @605 HP. Those ran good when they ran. Had to have one deleted as it was constantly leaving guys stranded. Spent $50k trying to get that truck to work right which it never did until deleted.
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Makes no sense at all. Maybe they were aiming more for fuel economy than emissions? Well there goes the fuel economy. I wonder if mpg will drop 50 percent like it did on the diesels when they got a dpf
I’m going to guess Corporate lawyers happened to the million mile claims
How many did you see that didn’t even make it to the highway ? Current emissions strategies are designed to eliminate ICEs and mandate EVs. Luckily some of this may change early in 2025. I’m saving my coin for a delete to help out the Green Initiative while I throw another log on the fire.
