I'm not saying I don't believe you. I'm saying I don't know or have heard of anyone doing 10K OCI's with a gas anything. I don't know or have heard of any shops that advocate such a thing either. Maybe with some special Uber oil from Amsoil but not stuff mere mortals buy at walmart.
My pickup is a 2011 F-150 with the 5.0 Coyote V8. I change my own oil and generally use the Motorcraft synthetic blend 5W-20, since that is generally the least expensive 5W-20 oil and the engine requires 5W-20 like pretty well every other Ford twincam engine I have ever seen. 5W-20 isn't rare any more like it was a dozen years ago but it still isn't nearly as common as 5W-30 or heavier oils. I get either one year or 10,000 miles between changes as my service notes in the owner's manual show. The service interval is longer than other gasoline engines I've used but the oil if anything looks less dirty than a typical gasoline engine's oil at the usual 5000 mile service interval. The truck also has a trip computer which calculates hours and generally an oil change occurs around 250-300 hours.
Mo1, haven't you figured out yet that I'm not going to fall for that strawman debate style? And don't act like you don't know what I mean.
You're talking about tractors . . Then you switch to autos which is not the topic and then diesel trucks.
I've yet to see a gas engine in any form of tractor that goes longer than 100 hours after the 1st 50 hour servicing. But many scuts go from the 50 hour service to then a 200 etc..
There are no remotely modern gasoline engines in anything larger than a garden tractor/riding lawnmower, so there is nothing to directly compare against for a SCUT/CUT. That's why the multiple references to passenger cars and pickup trucks, where there
are direct comparators to discuss the general differences between diesel and gasoline engines.
The Kohler ECV series engines I mentioned are probably the closest comparators to what would be considered a modern small gasoline SCUT/CUT engine, since development of actual gasoline small tractor engines stopped at the latest in the 1960s with a points-and-carb system. The ECVs have a 100 hour oil change interval but a 200 hour oil filter change interval. I looked at the Deere 1 series owner's manual as Deere is the only manufacturer that freely posts its owner's manuals. They state a 200 hour oil + filter change interval for both the 1023E and 1025R. This is also the same interval my 1987 Massey-Ferguson 1030L lists (had to buy the manual.) Larger diesels may have longer service intervals- my father's 6.7 L six-cylinder DI turbo NH 6030 has a 600 hour service interval but only if you use synthetic oil (and IIRC it takes over 3 gallons of it.)
Similarly you act like time to a rebuild is like "forever" I think you stated . . . But much closer to the truth is what gas engines on tractors or smaller equipment have as a lifetime to rebuild and that 5 to 7 years is the average while diesela in scuts is in the 13 to 16 year average . . .and that my friend is real cost of ownership.
We've used roughly similarly-powered gasoline engines in riding lawnmowers/garden tractors (mainly a bunch of ~650 cc carbed V-twin Kohlers) and run then for about 10 years (approx 1500 hours) and none of them ever needed rebuilt. None of them ever even burned very much oil. One leaked a good amount of it, but none burned much of it.
The highest-hour unit I've ever operated is my little MF 1030L, which has about 3500 hours on it. If I can decipher old man cursive in the original incorrect model owner's manual, it was rebuilt at some unknown point in the past due to a head gasket failure. The engine does show signs of having been R&Red at some point based on the paint around the holes mounting it to the frame being scraped off by the bolt heads.
But what is most glaring is your complete avoidance of telling us a comparable gas engine to my Iseki under the conditions I establushed in that post. Its just silence from Mo1 on that naming of the comparable gas engine.
The Iseki engine in your tractor is a 1.1 liter engine, which is larger than the small (generally 800 cc and less) low-RPM gasoline engines but way too small to compare to the generally automotive engine-based industrial engines such are used in LP gensets and such. Your Iseki engine makes 43.8 ft-lb torque at its rated power of 3000 rpm. I suspect the Iseki's peak torque is about 50 ft-lb based on other similar small diesel engines' performance as I cannot find the exact peak figures for the Iseki engine. That would make something like the Kohler ECV880 (824 cc) with 32 hp and 51 ft-lb torque a grossly comparable competitor. If we are comparing based on displacement, the largest Kohler ECV made, the 999 cc ECV980 with 35 hp and 53 ft-lb torque would be closer.
Surely by naming that engine and where we can go for a demonstration . . you would cement the debate for yourself. Yet you haven't. Could it be because there isn't a general production gas engine that can or is even close to capable of matching the Iseki diesel 3 cylinder tractor engine under the standard tractor needs definitions I used ????
Name it for us Mo1.
I did and it would be very interesting to see how it would actually play out. I am truly curious as we have not seen a good head-to-head of modern gasoline vs. modern diesel engines in small tractors and thus the giant long thread full of speculation rather than a "Brand X model X with gas engine vs. Brand X model X with diesel engine" thread.
