Jump to content
Posted
  • Staff

 It won't be long and it'll be that time. I recently bought this truck, previous owner used regular rotella. I am considering full synthetic rotella oil. In the manual it says 7500 miles between changes, would that extend if synthetic is used?

 For those of you that run synthetic, what interval do you change yours? 

 Just a curious question to see if the extra expense has more advantage than just better oil. Thanks 

  • Replies 91
  • Views 12.6k
  • Created
  • Last Reply

Top Posters In This Topic

Most Popular Posts

  • Here's what I'd do................... 

  • I will tip 500k in about 6 weeks, 494k and change at the moment.

  • Doubletrouble
    Doubletrouble

    I will definitely crack a beer at the milestones. Since I have my Cummins Dodge now I will be parting with my faithful '95 GMC Z71 with 360,000 plus on the clock. Been a great truck but it was time fo

Posted Images

Featured Replies

With 330k on the clock, and with my current average of 17k a year since new and my current age, I will have two milestones to celebrate when I hit 999,999.9,  I will also celebrate my 95th  birthday  :cheers:   and only 67 more oil changes to go at 10k intervals 

Considering my current mileage and miles driven a year it'll take 143 years to hit a mil. Considering my current age I have considerably less time than that left. I'll have to set another goal. I'll be mighty thirsty till then.

I have 65 years to go until 1 million. I’ll be just shy of 105. Not even sure diesel will be legal then. 

3 hours ago, Blueox01 said:

You know can get on Cummins web site , and get Medallion for each milestone, just 6.95 shipping.

What’s your mileage now?

8 hours ago, AH64ID said:

Not even sure diesel will be legal then.

Hey stop stealing my lines :shifty:

Edit

All kidding aside, I think diesel may become illegal for general public sooner than we think. I'm thinking like 15-20 years tops. I know it sounds crazy but I'm willing to gamble.

Edited by Dieselfuture

  • Owner
13 hours ago, Doubletrouble said:

Beautiful country moparman. Love the view. Why the v8 truck for now? If you don't mind me asking.

 

Price of gasoline drop hard in Idaho.  $2.479 to $2.559 a gallon vs $3.259 or $3.459 a gallon for diesel. Not to mention I've gotta pull the transmission again. Weller truck only rebuilt 5th gear. All the other gear have worn syncros. I use a lot of 3rd and 4th in the city. Now between all that is going on here with medical issues and weather I'm delayed on pull the transmission. 

11 hours ago, Blueox01 said:

I like to be able to keep track of my mileage, hoping I can get a dealer to zero it out. If not might take you up on it.

 

I can't be zero'ed out. The odometer goes to 999,999 miles and then stops right there. You would have to send the cluster in to be zero by a rebuilder. @cajflynn is the one that found that out. 

Edited by Mopar1973Man

10 hours ago, Royal Squire said:

What’s your mileage now?

896,547   In Blue below

Edited by Blueox01

My '98 24V Cummins sees about 6,000 - 7,000 miles per year. I tow my RV in the summer. I run Caterpillar DEO 5W40 full synthetic oil. I change my oil annually. Every October just before winter. I take an oil sample in about April, and another in Oct at the time I drain the old oil. I send it in to a lab for analysis. The lab tells me what's going on with my oil and engine internals. Oxidation is a good one to watch, aside from wear metals. I have no concerns and am not guessing when to change my oil.

Edited by keithb7

Man at 327 my trucks a baby compared to some here. Its amazing to see the 2nd gens running alot of miles

2 hours ago, Mopar1973Man said:

 

Price of gasoline drop hard in Idaho.  $2.479 to $2.559 a gallon vs $3.259 or $3.459 a gallon for diesel. Not to mention I've gotta pull the transmission again. Weller truck only rebuilt 5th gear. All the other gear have worn syncros. I use a lot of 3rd and 4th in the city. Now between all that is going on here with medical issues and weather I'm delayed on pull the transmission. 

 

I can't be zero'ed out. The odometer goes to 999,999 miles and then stops right there. You would have to send the cluster in to be zero by a rebuilder. @cajflynn is the one that found that out. 

Not according to this article  https://blog.cargurus.com/2015/11/13/watch-out-new-devices-roll-back-digital-odometers. 

Edited by Blueox01

11 hours ago, AH64ID said:

I have 65 years to go until 1 million. I’ll be just shy of 105. Not even sure diesel will be legal then. 

Diesel will be outlawed and drugs will be inlawed.

36 minutes ago, Blueox01 said:

896,547   In Blue below

Guess I’m colorblind 

2 hours ago, Mopar1973Man said:

 

Price of gasoline drop hard in Idaho.  $2.479 to $2.559 a gallon vs $3.259 or $3.459 a gallon for diesel. Not to mention I've gotta pull the transmission again. Weller truck only rebuilt 5th gear. All the other gear have worn syncros. I use a lot of 3rd and 4th in the city. Now between all that is going on here with medical issues and weather I'm delayed on pull the transmission. 

 

I can't be zero'ed out. The odometer goes to 999,999 miles and then stops right there. You would have to send the cluster in to be zero by a rebuilder. @cajflynn is the one that found that out. 

Your probably smart enough to do it.  https://www.bing.com/videos/search?q=Reprogramming+an+odometer&view=detail&mid=42BF41F59ED78FBCF6A842BF41F59ED78FBCF6A8&FORM=VIRE

5 minutes ago, dripley said:

Or just put a used one in. I put mine in and now I only have 133k on the clock.

The Driving I do I would really like to keep track of my TRUE (or within a few hundred) miles, watching that video looks like all I would need to do is soldier in a new chip, that should be at zero.

8 minutes ago, dripley said:

Or just put a used one in. I put mine in and now I only have 133k on the clock.

What you want for the spare cluster you have?

1 minute ago, Mopar1973Man said:

@cajflynn is our record holder at 1.3 million miles on a 53 block 2nd Gen. Oil changes every 20k miles.

Yea, I know, my 53 block cracked at 450K, but you can sure see the difference in the new block I got where they built it up where they would crack. I could probably stretch my oil changes out since they're mostly highway, but I've been trying to do it at about every 10-12K 

  • Author
  • Staff

After seeing the mileage some of you have mine is still new at 140k. Good to know she will be around a long time though. I have a few rust issues to address I'm the summer and trans syncros (mainly 3rd) all else is good to go I believe.

Keep tabs on that 6 speed fluid level. Lost 4th in mine due to complacency and not checking the level. About $3k for a good rebuild. But they will last with proper care. Just like the truck.

Guess I left out the other fluid levels too. The tranny was the one bit me. Just harder to keep tabs on.

Edited by dripley

7 hours ago, Blueox01 said:

 my 53 block cracked at 450K, 

@Monstermaker Would like to know that. He likes when people say "if it don't crack by 150k your'e fine" :)