Recent content by spencerdiesel

Thanks for the links! It's my ignorance of the latest HDEOs that have me leaning towards cj4 until I know enough about ck4 to make an informed decision.

Thanks for the link! I guess probably not a whole lot of UOA's yet? I've got 14 gallons of cj4 delo 400 that I snagged when all the ck4 started hitting the shelves, is the current white bottle valvoline HDEO similar in additives/ properties to the maxlife? What if any remaining cj4 oils seem...

Hey all. Noticed a pretty red valvoline HDEO bottle at Walmart a bit ago and was wondering how long it's been out and who's used it? I believe it is a cj4 oil! Opinions?

Good deal! What conventional 5w30 oils are on the thinner side at operating temp?

I've been thinking, I do some pretty short shifting for fuel economy and take hills in the highest gear I can. Is a xw30 weight oil good enough do y'all think? I'd have no problem trying a 40 weight oil, other than couldnt that offset some of the mpg? Thoughts welcome

Well I've got about 6k on 5w30 maxlife right now. I was going to change it and send a sample in at 7 or 8k. with my driving conditions and this engine being easy on oil, Y'all feel it'd be alright to run 7 to 8k? I know the maxlife is kind of lower on the TBN pole right? With 257k and frame...

Correct, the truck sees extended periods of operation at full temp. I make sure any time it is driven it reaches sustained operating temp

Thanks ya'll, Madibob I would be curious to see the sample from that run, that is quite a while

Hey all. When my 1st gen Cummins was my daily driver it was averaging 22-24k miles per year. I run pretty close to ideal driving conditions: 35 miles each way to work, 80% highway. Running delo 400 15w40 w/ Donaldson dbl filter I was changing oil about every 8k (early I know) or 5 months. Now...

Thanks for the input everyone. I won't be getting a super deal, in fact I'll end up paying about a dollar more per gallon than what conventional delo usually runs at Walmart. Reason I'm willing to do so is my local 2 walmarts are out of cj4 15w40 oils as far as I've seen. Has anyone had...

Hey all, I work at a Kubota dealer and can get oil for an ok price. We just got a bulk order in Thursday of the new ck4 rated kubota 15w40. We still have a few cases of the "old" cj4 oil and I was thinking about buying several cases. I've heard a few people say that kubota uses valvoline oil...

Lot of informative responses. I feel better now, leemajors mine looks very similar to your pics you posted. TheKraken, why do you not recommend running 8k on the syn blend? Keep the talk coming

Hey everyone, I've got a '97 Tacoma with the 5vzfe. 253k on the original engine and I know it's had a rough life. Peering into the valve cover you can see some minor sludging it looks like. Are 3.4s more susceptible to sludging with extended OCIs and conventional oil? I would like to run 8k...

Wow a lot of responses! That makes sense about the upright filter, can oil be pulled from the filter over time after the engine is shut off and cooling? I've changed oil/seen other cummins oil changed and sometimes the filter is only about half full? To anyone else with a 12v, how long after...

Hey everyone, I've been reading around this forum for a while now and finally joined. I have a '92 dodge W250 with the 12 valve Cummins and have been running delo (cj4) and the Donaldson 7349 filter for about the past 3 oil changes. I got the dbl because of the 99% efficiency @ 15 micron...