User Panel
Posted: 2/11/2021 2:25:51 PM EDT
What manufacturer produces the best diesel engine. "BEST" means most reliable , longest lasting, ease of maintenance , etc. VS ( and not interested in ) highest HP, easiest to modify/tune , ultimate performance etc.
Don't care about vehicle type / platform. Car, SUV, truck..... doesn't matter. Don't care about high tech features , fancy interiors , etc. Just who puts the best diesel engine in their product to get from point A to point B reliably with as little fuss or concerns as possible. |
|
|
Typically the Cummins engine will last longer than the shitbox it's installed in.
|
|
If you are talking new light duty trucks, most likely Cummins. They even went and changed the CP4 to a modified CP3 to increase reliability, so they obviously are on top of shit. Of course the emissions and Fiat wrapper will take its toll on reliability...
|
|
Quoted: Kubota! I'd say you mean in vehicles though. View Quote Kubota + Ford Fiesta! Super Milage Car - Diesel Ford Festiva 60 MPG City |
|
Quoted: under current production? impossible to say. none of them have been around long enough to know. historically. this little motor. https://cdn.drivingline.com/media/2323598/bosch-ve-injection-pump-volkswagen-alh-diesel.jpg I see these things with 300k plus miles, all the damn time. weekly. I have one in the shop now getting a window regulator. View Quote Old VW?? |
|
|
The two that immediately come to mind are the Cummins 5.9L and the Powerstroke 7.3L.
After that, it's all a crapshoot because they're "emissions" engines and most of their respective problems are related to the emissions equipment, not the engines themselves. If I was buying a brand new diesel pickup, I'd lean towards the Ford, but the Cummins in the RAM is nice, too. |
|
Quoted: under current production? impossible to say. none of them have been around long enough to know. historically. this little motor. https://cdn.drivingline.com/media/2323598/bosch-ve-injection-pump-volkswagen-alh-diesel.jpg I see these things with 300k plus miles, all the damn time. weekly. I have one in the shop now getting a window regulator. View Quote ohhhhhh TDI.. 2005 jetta TDI BEW engine, 45 mpg, 50 on the Hwy in 5th gear running 2300 rpms. 250,000 miles +, and all maintenace done. just needed a stupid EGR :( damn smog.. LOVE those I hear the Golfs could do better in MPG. edit: as stated below - ALH > BEW BEW's had direct inject, each injector big $$. ALH, you could replace all injectors for 200 bucks. Other poor design was the hose clamp connectors to the turbo. Biggest POS clamp design ever. |
|
Quoted: ohhhhhh TDI.. 2005 jetta TDI BEW engine, 45 mpg, 50 on the Hwy in 5th gear running 2300 rpms. 250,000 miles, and all maintenace done. just needed a stupid EGR :( damn smog.. LOVE those I hear the Golfs could do better in MPG. View Quote ALH was better... BEW wasn't too bad but those EGR coolers were terrible, and the valve covers warp and leak oil. the BRM was fucking horrible. worn cam, egr cooler failure, turbo failure by one of many different ways. at least they were easy to work on. |
|
John Deere 6.6L found in the 4020s.
CAT C15 6NZ. Either will make 5.9 Cummins look unreliable. |
|
Mercedes diesels run forever with good maintenance.
As mentioned, Ford & Cummins do well on the pick-up level. Not sure where a Volvo diesel might be found in something but they're known for longevity. Detroit Diesels used to be swapped in to GMC trucks & did well as they're two-strokes, turbo'd AND supercharged (in some models). I don't think they were ever OEM issue in pick-ups though. My .o2 |
|
Quoted: John Deere 6.6L found in the 4020s. CAT C15 6NZ. Either will make 5.9 Cummins look unreliable. View Quote |
|
Quoted: John Deere 6.6L found in the 4020s. CAT C15 6NZ. Either will make 5.9 Cummins look unreliable. View Quote Can't even think of what the last engine repair was on the farm's 4020. Or the transmission. Or anything else for that matter. Well, there was the leaking fuel gasket for the filter, but I won't hold it against the old JD. |
|
|
1HZ is still being made AFAIK
you won't get there fast but you'll get there... |
|
Quoted: Truth. Can't even think of what the last engine repair was on the farm's 4020. Or the transmission. Or anything else for that matter. Well, there was the leaking fuel gasket for the filter, but I won't hold it against the old JD. View Quote 4020s were the worst financial tractor for John Deere. So over built and reliable they never had to sell parts. The iron horse series. 4240, 4440, 4450, etc. Are also up there. The 7.6L Deere engine was bomb proof. |
|
6.2 / 6.5 Detroit Diesel found in mid 80s CUCVs and HMMWVs seem pretty robust. I've also heard good things about the 4BT and 6BT engines.
|
|
I would vote for the old non turbo vw in the rabbit. I had a 5.9 12 valve, lots of miles and repairs.
|
|
|
Quoted: 6.2 / 6.5 Detroit Diesel found in mid 80s CUCVs and HMMWVs seem pretty robust. I've also heard good things about the 4BT and 6BT engines. View Quote Those weren’t Detroit’s they were GM engines. They broke cranks and mains for the power they made. The 6.5’s ate pumps. The military version of that engine was a 6.7 a 6.2 with a stroked crank in it. The military 6.7 had a straight mechanical pump in it. |
|
The PACCAR MX13 in the '14 Peterbilt I recently moved out of was pretty good. 700k miles and it never used a drop of oil or coolant. Only issues I ever had were the usual electric gremlins with sensors and such. Never even had to do a parked regen. Ever.
As for light trucks? The pre-emission 5.9 Cummins was the high water mark of diesels. The gutless GM 6.2 was pretty stout as well. I would buy any of Big Three diesels today (and I did- 6.7 Powerstroke) with the understanding that I might have some issues, but I could improve my odds with obsessive preventative maintenance. Mercedes diesels were legendary back in the day. |
|
|
View Quote Ha cool! I'm putting one in a Wrangler LJ right now. |
|
Some guy I surf fish with has an isuzu diesel he transplanted out of a 1980's Trooper into his old wrangler, damm thing has close to 500k miles in it & it won't die, just keeps chugging away.
|
|
Quoted: Typically the Cummins engine will last longer than the shitbox it's installed in. View Quote That's not saying much though. Buddy of mine just traded off a '19 Ram 3500 diesel because it was in the shop non-stop with emissions issues. It was in limp mode or on a rollback as much as it wasn't. ALL new diesels are garbage. |
|
|
cummins.
get rid of the emissions shit and it will chug along forever. |
|
CAT.
And old John Deeres. Modern Deere marine engines are pretty good too. |
|
|
EMD locomotive engine
EMD V20-710 Start-up and rated load. The original video! |
|
Quoted: Those weren’t Detroit’s they were GM engines. They broke cranks and mains for the power they made. The 6.5’s ate pumps. The military version of that engine was a 6.7 a 6.2 with a stroked crank in it. The military 6.7 had a straight mechanical pump in it. View Quote Uhh....Every single thing in this post is nonsense. Like all of it. |
|
Quoted: ALH was better... BEW wasn't too bad but those EGR coolers were terrible, and the valve covers warp and leak oil. the BRM was fucking horrible. worn cam, egr cooler failure, turbo failure by one of many different ways. at least they were easy to work on. View Quote View All Quotes View All Quotes Quoted: Quoted: ohhhhhh TDI.. 2005 jetta TDI BEW engine, 45 mpg, 50 on the Hwy in 5th gear running 2300 rpms. 250,000 miles, and all maintenace done. just needed a stupid EGR :( damn smog.. LOVE those I hear the Golfs could do better in MPG. ALH was better... BEW wasn't too bad but those EGR coolers were terrible, and the valve covers warp and leak oil. the BRM was fucking horrible. worn cam, egr cooler failure, turbo failure by one of many different ways. at least they were easy to work on. What years and models should I be looking for, if I was thinking about buying a used car, pulling the ALH engine out to put in something else, then either parting the car out or selling it to a salvage yard? My experience is limited to the 1.6 normally aspirated diesels used in the Rabbits and Jettas in the 1980s. |
|
Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. One new winner* is announced every week!
You will receive an email every Friday morning featuring the latest chatter from the hottest topics, breaking news surrounding legislation, as well as exclusive deals only available to ARFCOM email subscribers.
AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types.
From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm.
Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more.
Copyright © 1996-2024 AR15.COM LLC. All Rights Reserved.
Any use of this content without express written consent is prohibited.
AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own.