IdahoDoug said:
I understand, Doug. I am trying to keep the discussion technically correct. Forgive me - as an old Chemist, I see "heat capacity" and that means something that is completely outside this discussion.
Cary - your current engine oil favorites?
- Thread starter IdahoDoug
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I understand, Doug. I am trying to keep the discussion technically correct. Forgive me - as an old Chemist, I see "heat capacity" and that means something that is completely outside this discussion.
tarbe said:
That's one of the things I love about this forum. There's a frightening number of engineers/chemists/physicists/geologists!/etc., that are as anal with their terminology as they are with their trucks
. What other forum would find folks being sticklers about their Joules per kilogram Kelvins in the midst of a thorough discussion of motor oil?
Makes me feel warm and cozy.
Hayes
Hayes said:
Me too! And we all kinda keep each other on our toes.It's funny because this forum reminds most of the old BMW forums of 10+ years ago, when everyone was a gearhead and computer access was mostly limited to corporations and colleges. There are very few car forums (only the Porsche ones that I can think of) that has as diverse of a group that keeps the BS in check, questions theories, and bring solid technical data to the table.
I have even seen a drop in the quality of posts on bobistheoilguy.com ove the last year or so. When it was 2000 members, most were gearheads, chemists, and other technically oriented people that were interested in objective data. Now every other post is "I changed my oil to xxxx and my car runs so much quieter, better, and gets 50% better mileage."
I have even seen a drop in the quality of posts on bobistheoilguy.com ove the last year or so. When it was 2000 members, most were gearheads, chemists, and other technically oriented people that were interested in objective data. Now every other post is "I changed my oil to xxxx and my car runs so much quieter, better, and gets 50% better mileage."
- Thread starter
- #45
Cary,
Couldn't agree more. I've been on many forums over the years and they all seem to have a similar profile to what you noted on Bob... A core group gets discovered and the gene pool gets watered down. One thing that I think helps this forum in that regard is the limited numbers of 80s sold. There were probably more Tahoe's sold in 1 calendar year than all the 80 years added together.
Anyhow, great stuff on the oil. As testament to my faith in the great knowledge that is contained in all you guys I literally just picked up 3 gallon jugs of the Rotella T 5-40 synthetic. No research. No real comparison - just know you guys are well informed and being a parasite on that knowledge. Heh - there's a concept, an intellectual parasite.
Anyhow, looking forward to getting the cheap dino oil out of them that BOTH trucks have been running on as a planned couple thousand mile flush after they both got fresh head gaskets. It's killing me to know that's in there, so looking forward to getting it out now that it's served its purpose. Also killed me to use up a pair of my precious "good" Toyota filter stock but what's the point in worrying about flushing crap in there if I don't use the best filter available. Ah well...OCD behavior at its finest.
DougM
Couldn't agree more. I've been on many forums over the years and they all seem to have a similar profile to what you noted on Bob... A core group gets discovered and the gene pool gets watered down. One thing that I think helps this forum in that regard is the limited numbers of 80s sold. There were probably more Tahoe's sold in 1 calendar year than all the 80 years added together.
Anyhow, great stuff on the oil. As testament to my faith in the great knowledge that is contained in all you guys I literally just picked up 3 gallon jugs of the Rotella T 5-40 synthetic. No research. No real comparison - just know you guys are well informed and being a parasite on that knowledge. Heh - there's a concept, an intellectual parasite.
Anyhow, looking forward to getting the cheap dino oil out of them that BOTH trucks have been running on as a planned couple thousand mile flush after they both got fresh head gaskets. It's killing me to know that's in there, so looking forward to getting it out now that it's served its purpose. Also killed me to use up a pair of my precious "good" Toyota filter stock but what's the point in worrying about flushing crap in there if I don't use the best filter available. Ah well...OCD behavior at its finest.
DougM
IdahoDoug said:
I don't know, man. You were anal about your coolant, look what that did for you. Now, you going to start being anal about your oil... well, you know what's going to happen..... just stay away from my rig!
cary said:
A danslation:
Cary just said he "likes us"...
Well, most of us anyway.
cruiserdan said:A danslation:
Cary just said he "likes us"...
Well, most of us anyway.
Now that's funny Dan
cary, to mix it up a little more: I assume you didn't mention Amsoil syn due to it's higher/highest cost? I have used it for years with great results...
IdahoDoug said:
Slightly on/off topic, but many people (I mean 'academics'
) argue that humans are best at this...since the notion of originality is pretty much out the door when everyone has access, more or less, to pretty much the same information...So, a newbie like myself can basically acquire all of the 'written' knowledge out there and seem intelligent on a topic....
;p Though, I've now got enough abrasions, cuts, scrapes, contusions, blood on the garage floor to say that I have some experience....
-o-
Edit: Anyway, back on topic: Summer: Rotella 15-40 (3.5K interval changes); Winter: M1 5-30 or Kendall 5-30 Synthetic (depending on availability/price), 2 oil changes for the winter months.
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- Thread starter
- #51
Beno,
To that I'd respond that we as humans have in enormous capacity to look at the same information and draw different conclusions. So, someone can research combustion chamber theory and espouse that approach A is the only way to go. But someone with years of experience (several layers of knowledge and experience around that kernel) can come along and point out that approach A is only appropriate where the goals for the engine are peak output/small displacement and high working RPM.
So, despite the increased availability of information brought by the 'net, it's only the trunk, tail or legs of the elephant. Pick one....
DougM
To that I'd respond that we as humans have in enormous capacity to look at the same information and draw different conclusions. So, someone can research combustion chamber theory and espouse that approach A is the only way to go. But someone with years of experience (several layers of knowledge and experience around that kernel) can come along and point out that approach A is only appropriate where the goals for the engine are peak output/small displacement and high working RPM.
So, despite the increased availability of information brought by the 'net, it's only the trunk, tail or legs of the elephant. Pick one....
DougM
spressomon said:
Amoil is a great product and I wouldn't hesitate to use it. I don't recommend it for a few reasons. 1) It is more expensive than Mobil 1, 2) in the UOA's I have seen, it doesn't perform any better than Mobil 1, and 3) it can be difficult to get for many.
Cary,
Based on what I have been reading written by you and others, I switched over to Shell's Rotella T 5-40 synthetic. Though, things are still fuzzy in my big head. Living in a milder climate (San Diego), at 5W-40, wouldn't 40 be too thick at operating temperatures for most any rig?
Based on what I have been reading written by you and others, I switched over to Shell's Rotella T 5-40 synthetic. Though, things are still fuzzy in my big head. Living in a milder climate (San Diego), at 5W-40, wouldn't 40 be too thick at operating temperatures for most any rig?
alia176
SILVER Star
I like this forum just so I can improve my writing and vocabulary skilz
roncruiser said:
no 40wt's seam to be the sweet spot for the 1FZ in most but the coldest climates. a heavy 40 wt should be right for your area.
Delo is the stuff....
IMHO, Chevron Delo in whatever weight you like is purty good stuff indeed. I am working for an earthwork contractor and have worked for others that all run Delo in 30wt in the heavy equipment and 15w-40 in the trucks and pickups. In 20 years I have only seen one engine go down to any sort of friction failure (It was bought used and lost bearings soon after) and some of these rigs have gone to 30,000 hours prior to being retired. I personally have driven two fords, one diesel and a gas six cylinder to well past 300k. My current truck is an F-250 with 190k, and it's annual Caterpillar SOS oil sample comes back almost the same as it did the first time 6 years ago. Now if we could only find an ATF that would make Auto Trannies have the same life span......
IMHO, Chevron Delo in whatever weight you like is purty good stuff indeed. I am working for an earthwork contractor and have worked for others that all run Delo in 30wt in the heavy equipment and 15w-40 in the trucks and pickups. In 20 years I have only seen one engine go down to any sort of friction failure (It was bought used and lost bearings soon after) and some of these rigs have gone to 30,000 hours prior to being retired. I personally have driven two fords, one diesel and a gas six cylinder to well past 300k. My current truck is an F-250 with 190k, and it's annual Caterpillar SOS oil sample comes back almost the same as it did the first time 6 years ago. Now if we could only find an ATF that would make Auto Trannies have the same life span......
cary said:
I have been looking around for the Shell stuff and found Shell Rotella T - Heavy Duty 15W-40 ..... besides the weight, is this the same oil as being discussed by Cary? I found it at Schucks for $8.99 a gallon + tax. Also, Costco carries the Chev Delo 500 at a good price.
Montana Cruiser said:
Is this the same Rotella-T and Delo 400 used in diesels?
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Montana Cruiser said:
no rotella 15w-40 is not the same oil group III oil
LandCrusher'70 said:
yes
