Why is Mobil Delvac 1 so expensive?

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Yeah, you'd think it would be a little cheaper in Texas since Mobil is in Spring, but I guess that is wishful thinking
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I might just try the DELO LE. I might just stick with the PP Euro L.

So many choices!!
 
Delvac 1 SHC costs me ~$32/gal but it seems worth it. As far as viscometrics it is a 5W40 and is easy to start at subzero temps (not much of that last winter with combination El Nino and NPDO = North Pacific Decadal Oscillation). It is pretty much the only oil sold in North America that is rated MB228.5 and thus is good for 1200hr = ~40Kmi in my application. It has almost 1500pm Zn and 4800ppm Ca and after 17500mi had only 36ppm Fe and TBN 12.4! Will try 25-35K mi this time.

Charlie
 
While I am a firm believer that you get what you pay for, pricing doesn't always reflect quality. With that being said I have never had any Shell product outperform anything else through UOA, and have full confidence that the Mobil product mentioned is "better".

I have tried the Rotella line in diesel engines and the Quaker State Ultimate Durability in gas engines and have been disappointed with both through UOA compared to other oil with the same duty cycle/usage.
 
After shopping around the local Wally worlds and Auto parts houses, including NAPA, I was only able to find one place that sells the Mobil Delvac 1 5W40 and it was $60/gal. Amazon sells a 4 gal box for $150. Since I won't be going over 10k mile OCI, it really is priced out of practical use.
The DELO at WM for $18/gal is looking pretty good at this point.
 
The NAPA had exactly zero gallons of Mobil Delvac 1. I found the one specimen at Advance Auto. I'm near Ft Hood, TX so not a whole lot of big trucks or trucking companies. I'll see what I can find when I get to Temple, TX, a more industrial type of town with lots of HD trucking.
 
The NAPA in Temple shows it available online for $32/gal and there is the $12/gal rebate through the end of the month so I think I will try it.
 
http://pds.mobil.com/Italy-English/Lubes/PDS/GLXXENCVLMOMobil_Delvac_1_LE_5W-30.aspx

as you can see this oil does a bit more then your average oil.this oil temperature in turbo reach normal operating temperature of 215f, and in turbo up a hill it goes up all the way to 950f .go see what sn and cj-4 standard are then go see acea e9
a lot of other company say they pass muster sadly you never see them vetted by manufacturer of engine! and this is very important because engine maker do test these things on occasion or when a new oil technology arise
 
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I'll be picking up a 4gal box this morning and hopefully changing the oil this weekend.
Thanks for your replies and advice.
 
Originally Posted By: Dodgetracker
in turbo up a hill it goes up all the way to 950f No way are oil temps reaching 950 degrees.
Lol - I saw that too and assumed the OP made a typo or was talking about EGTs, but either way something would be off.
 
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Hello,

In HHS Diesel engines these EGT are common parameters;

Shut down = 1070f

Warning = 820f

Normal = 670f

Lubricant passes through the turbocharger and a common problem (once was) is oil degradation when substandard lubricants are used
 
The problem get worse whet autoshutdown occurs at 1067f, since the oil will stop running and get really coked. Or not, there's some sort of backup electric pump in hot autoshutdown to keep oil flow?
 
Hi,
Pontual - Yes, lack of idle (or light use) time before shutdown was a major killer of turbos in Heavy Trucks. - especially after a long climb when all temperatures were at or near maximum
This was further exacerbated by its location - on some engines they were mounted above the valve cover, in the hottest location and shutdown not only stopped lubricant flow it drained the turbo at the same time

Idle down timers are now common of course as is better Driver education - and locations are sensible. Better turbo design, metallurgy and bearings all help along with coolant cooling

IMO this is just one reason why the OEM's lubricant Specs are so important to be followed!
 
I bought the Mobil Delvac 1 ESP 5W40 from NAPA yesterday for $31.99/gal. With the $12/gal rebate that makes it a very reasonable $5/qt.
Thanks for all the replies about the Delvac 1. Hopefully it will work well for my truck's little engine.

As a side note, my truck has a water cooled turbo. Advances have been made in turbos. Big time.
 
Wow. My Cummins ISX and Detroit 60, along with previous N-14 never gave any kind of warning even when EGT's got to 1100F. My Detroit 60 with a Borg Warner 171702 turbo gets 900F frequently on hard pulls on a hot day. Sometimes 1000F if I am not watching things as closely as I should and wait to drop a gear and get the RPM's back up a little. Put 1.4 million miles on the N-14, still had original turbo and it only got Kendall 15w40 conventional. Same for the ISX, but I sold it at 983,000 miles. The Detroit now has 540,000 miles on it and nary an issue, but it is getting a Schaeffer syn blend 10w30. Those are some low EGT's, Doug. I only see those "normal" temps when I am putting less than 10 lb of boost with a light load. Only the VG turbo on the ISX was water cooled. The BW 171702 I am using on the Detroit 60 isn't, nor the Holset on the N-14.

Lots of fleets using conventional 15w40 with their less than stellar company drivers who could give a rip about EGT's (many company trucks don't even have pyrometer gauges) and there is not a line of broke down trucks down the highways.

Not sure where the idea that oil temps were getting anywhere near the EGT temps came from. There is a high volume of oil being fed thru the turbo that there is no way the oil is getting that hot. Even at 900F EGT's on a hard pull, my oil never exceeds the engine coolant temp.
 
Hi.I have a 05 Ram 2500 Cummins 5.9 has 113,000 mi,thinking of trying Mobil Delvac 1 LE 5-30 for next oil change (usually use t6 5-40).Any reason or reasons i shouldn't?Run 42 miles round trip to work mainly 40-55 mph roads with next to no traffic in the AM and little traffic in PM.Thanks.
 
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