DonM wrote:
Since I fuel the daylights out of my truck, I gotta change a bunch.
In multiple posts, you seem to have made a major point out of what the manufacturer’s recommendations are for oil. You’ve also used words that strongly suggest you question the intelligence of anyone foolish enough to collect information from other sources and go with a choice that conflicts with the Cummins’ recommendations, because Cummins knows the product best, and has spent many years and millions of dollars developing it. Your signature doesn’t give details, but the above statement strongly suggests that you have made modifications to your truck that would not meet with Dodge or Cummins approval. Don't you see any inconsistency here? None?
On the “Filters” thread, you posted
Oh really? I thought you didn’t believe in going against Dodge and/or Cummins recommendations? See
http://dodgeram.org/tech/tsb/2001/09-004-01.htm Guess what, Wix isn’t listed. Even if you tell me Wix makes one of the filters that is listed, I want it IN WRITING, FROM THE HORSE’S MOUTH (that would be Dodge or Cummins) that I can use the Wix filter. Otherwise I have no guarantee that the Wix filter is made to the same specs as the one they make for rebadging.
And the link to the filter study contained some gems like this:
"When it comes down to it, all of the lower-priced filters ($5 or below) have they (sic) ups and downs. In reality, there are only five different manufacturers available. Here are the low-cost filters that I feel safe using, based on all this information (in alphabetical order): AC Delco, Purolator, and Wix. "
Yeah, that’s what I want for my Cummins - a “low cost” filter with “ups and downs. ” NOT.
The study also included this comment about the Wix: “Like the AC Delco, it also has a minor internal sealing problem. In this case, the bypass valve has a metal-to-metal seal to the filter cartridge. It probably doesn’t really leak either, but if it did, dirty oil could get to the clean side of the filter. Otherwise it is a good filter. ” Now there’s a real confidence booster. Other than the possibility that this filter might not filter the dirty oil, it’s a good filter. Yeah, I know I'm quoting only the parts that support my position, but I'm just making a point.
If bypass filters work so well, why aren't they standard equipment, I believe you suggested? I can think of many reasons why not, but for #1 on my list I'll point out that the redesign that would have prevented most of the fires in Ford Pinto's was estimated at $11 per car. (Correction: A second option would have been only $5. 08 per car - the $11 figure was just Ford's original estimate. )
http://www.uoguelph.ca/~lsatchi/Disaster.html So tell me again why you believe they would spend $50 to give my car the potential to last longer, when most people don't even keep them 100k? Didn't you hint that people would line up to buy the cars that could go long periods between oil changes? Why do you believe that, when so many still change at 3k because they don't believe the Manufacturers' claims that you can go 7. 5k? If they built the car tomorrow, ten years from now most of the public would still not believe it was OK to go more than 5 or 6k between changes.
How do you feel about the "never change" system Cummins has developed for their industrial engines? I guess it doesn't really work... but if you agree it does work, then tell me the difference between continuously burning some of the oil in the engine (Cummins CENTINEL system) and then topping up, vs. getting out some of the old oil by changing filters and then topping up (extended drain plan with appropriate filter changes). Either way, the fact is that due to new oil being added, the "average" age of the oil in the crankcase NEVER gets to 100k, because every time you change both your full flow and bypass filters you're dumping about 20% of the old oil and replacing it with brand new.
Early in this thread, you had my support on a couple of points, and my sympathy. I think sometimes we don’t discuss the “pros and cons” of the various products enough. We tend to discuss just the pros. I too have been attacked for trying to balance the equation and tell others about a product feature or side-effect that I didn’t like, so that anyone choosing the product would be more informed and not surprised later. But somewhere between page 5 and page 15 of this thread, you lost me, and I started feeling BETTER about my Amsoil and my bypass filter, not worse. I apologize for attacking you on a couple of points, but like some of the others I feel like you have been attacking my intelligence for 18 or 19 pages now, and I could only take so much before pointing out a few things I had noticed along the way.
Besides, I think you were wearing the other guys down, and I had to give them a short break. But remind me not to ever try partying with you - I’ll sure you could stay up all night!
Now, can’t we all just get along?