Diesels are better(continued from FOrd tech forum)

No it isn't, it's your imagination.

 

What about using a quality oil and just changing your filter and topping the engine off between oil changes? We have had great success with this method in our semis. Since we run mostly Exxon XD3 extra that is rated for 50K we just do a filter change at 15K or so and change it at 30K. The one thing we gain though, is that most of our engines have three filters, which when filled back up brings in a lot of fresh oil.

I've thought of running something like Amsoil in my Dodge and just changing the filter at 15K and changing it at 30-40K...?

 

Well I run "B" and "C" seires 3406 Cat engines and they recommend changing your oil every 6k miles. Then I run off/ on road with my construction trucks. When things get busy I might go 10k miles.

 

I woule have to say that I am totaly with RJF on this one. I check my oil every other fuel up, and top off when needed. But only change the oil at 10/ 12k . Change the filter at 5k.

Did you guys know that Roadway DOES NOT chnge the oil in their rigs until 1 million. The motor uses oil, they change the filters. Could you imagine driving a big rig and changing the oil every 3k???? That could be once every other day. Personaly I think the "recomandations " have a whole lot to do with the oil industry more that true where and tear.

As far as gas / diesel......I love my diesel!!!

 

Do you have regular oil samples tested? I did and used the results to establish how often I needed to change the oil in mt Cat powered rigs used in local service. My results mirrored Cat's advise for those engines. And OTR trucks that are on extended oil changes don't do the short hops- local driving like we use are pu's

 

Uhh, yah , no "scientific"testing done from me, just that I trust the guys that I learned from really.

 

My trucks spend a lot of time ideling and running in dusty areas. The standard in the industry was change the oil every 10K miles or every 3 months. With sampling I found I needed to change the oil every 6K miles. Oil and filters are cheap compared to doing a inframe rebuild. Plus if I have a motor go down during the busy part of the year I lose the income that truck would make too. When ever possible I try and have major work done on the trucks during the winter when construction work is slow.

 

I don't want to get into a debate but I'll throw this out there. We don't change the oil in our rigs as soon as we probably should but also on an engine that lasts 1 million miles, 11 gallons of oil and 3 large filters are not cheap when being changed every 10K. If multiply the cost of one oil change by the amount of changes that would accure every 10K on a million motor that is a LOT of money. We change ours roughly every 20K or so and most of our trucks are in ag work with dust and short trips. We have one 60 series Detroit with over 1.1 million miles on it, we aren't getting any less mileage than other guys that are religious with oil changes and we are saving a lot of money in less frequent oil bills.