Originally Posted By: A_Harman
A million miles is at the low end. Engine manufacturers are shooting for a million miles before the first rebuild.
That is often the goal. Most will go 700,000-1,000,000. Then one overhaul at that mileage will probably be the last. Not many trucks go long enough to need another overhaul, the rest of the truck is usually shot by then. However it could be rebuilt and put in a glider.
Our oil rep is a retired UPS fleet manager. They ran their Mack's on 30k OCIs with Delo and ran them to 1.6 million with no overhauls or bearings then scrapped them. When they switched to running 10w30 they gained 1% in fuel economy.
Originally Posted By: stockrex
maybe the manufacturer can require 10w30...
They could, but they list in the article that different weight motor oils can be spec'd for a factory fill by the customer.
http://finance.yahoo.com/news/kenworth-upgrades-factory-fill-engine-170000253.html
Originally Posted By: bigt61
It's all about fuel economy these days.
I missed the "Delo Dinner" our dealer had a little while back, one of the main topics was the new oil spec that is coming up soon. The entire focus on the new oil seems to be fuel economy. At this point it is said to not be backwards compatible.
They are dropping RPM's little by little to help with fuel as well. Volvo is down to cruising at 1100rpms. Detroit is getting down there too. Have not heard where Paccar is at. Cummins just dropped to 1300rpm for next year. They expect to drop more to meet the standards.
Originally Posted By: dparm
Interesting. What was the previous FF?
Chevron Delo Multigrade 15W40 has been the factory fill since 1989 for Paccar. Our 96 T800 still has the factory fill sticker on it.
In 2005 they started using Delo ELC for factory fill coolant. At that time it was the factory fill or option at every truck mfg.
Originally Posted By: sdan27
The Caterpillar HEUI engines and 6.6L engine have been coming from the factory with 10w-30 for the last few years. I don't know about their larger engines.
Well lately their larger on road engines have been non-existant.
Enough of their off road stuff comes with 10w30 though.
Originally Posted By: KD0AXS
Of course, most fleets operate like the company I work for and the 10W-30 will quickly be dumped at the first OCI and replaced with cheap bulk dino 15W-40 "Because we've always done it that way".
They're probably the same ones draining at 15,000 miles as well. "Oil is cheaper than an overhaul". Those people really bug me. This is the one site I can come to and finally relax when it comes to stuff like that. Outside of it though, especially farming boards, the 200hr/3,000 miles/15,000 mile oil change is considered gold to many. Even though OEM's are reccomending 5,000-10,000 on the cars, 500-600hrs on tractors and 30,000-50,000 miles on OTR trucks.
Its the stubborn American way.
I was talking to our Volvo Construction Equipment service manager the other day about their new loaders. I brought up the "Eco Pedal" feature they have. Essentially it applies variable resistance to the pedal to try to "naturally" make you run lower RPMs, you can still overcome it, but if you are not paying attention it will push your foot back.
He also mentioned that in their excavators there is a High/Med/Low for the engine RPM. However everywhere but in the USA, the High position does nothing. Medium is where the engine runs best and produces the power needed, yet the Americans thought it didn't have any power unless they could hear the engine screaming, so they did what they had to do to keep themselves competitive and offered a high throttle setting.
