HDEO Question for PCMO "guys"

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Gebo

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First of all, I have posted this is HDEO forum but they may be biased over there so I posted here to get a more "fair and balanced' answer. FWIW...


I have read and searched and I'm not sure I have found a consensus (imagine that on this website
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) but what is wrong with running a HDEO in all the cars and van in my sig? What is right with it? I believe, from what i have read, that it will not hurt my catalytic converters or my O2 Sensors.

If I had unlimited resources I'd probably run RedLine but I cannot afford it and cannot go 10K w/o changing the oil. I use OEM filters with 5000 mile OCI's. I see gallons of the HDEO on sale for as low as $12.99 quite often. Please note, I cannot go 10K on an oil change so it will be futile to change my mind. I'm using Kendall Full synthetic 5w30 now at right at $5/qt.

On last request, please don't say to use whatever is on sale. I want to know about the advantages and disadvantages of using HDEO in all my stuff (including lawnmowers).
 
IF (and sometimes that's a big 'if') you can get it in the correct viscosity grade for every car on that list, then there's really not much of a downside.

There may be zero UPside, but that's somewhat a separate question. I doubt that more than 1 or 2 of the vehicles on that list have non-roller cams, and they're the only ones that might really benefit.

JMHO.
 
I ran HDEO in an old 460ci 4x4 van I had and a 99 Cadillac with the Northstar engine. During the summer I sometimes run it in my wife's Santa Fe. These all recommend 10w30 oils (or higher in the case of the 460 van.

I like the fact that the oil has a great detergent pack, it is designed to run in diesels that can run higher pressures and hotter(I think) and can handle the soot from these engines. So to me, it offers great protection at a great price. Higher levels of zddp I believe as well.

as long as the SAE grade isn't too thick for the vehicles your running, I think your okay.
 
I'll bet Rotella T6 (5w/40) would be fine for 10k in all of them.

I've done it in the 4runner and Prelude examples.....the others wouldn't scare me either. It's a fleet oil anyway and it's supposed to be a one size fits all (with exceptions) but, it's not inexpensive. I wouldn't go Rotella 15w/40 in any of them.

T6 is good tough stuff though....just put some in my tiller and my 99 tacoma 3.4 this weekend.
 
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I don't see a single vehicle in the OP's list that would be harmed by a 15w40 HDEO, maybe a 10w30 or a 5W-40 might be more optimal in a couple cases, but I see nothing that "NEEDS" a 5w30 (or 5W-20, or 0W-20, etc.) to continue to run.

His vehicles all have (with the exception of the Integra) over 100K...

What's gonna' hurt? A mpg, maybe?

Cheers!
 
Originally Posted By: Norm Olt
I don't see a single vehicle in the OP's list that would be harmed by a 15w40 HDEO, maybe a 10w30 or a 5W-40 might be more optimal in a couple cases, but I see nothing that "NEEDS" a 5w30 (or 5W-20, or 0W-20, etc.) to continue to run.

His vehicles all have (with the exception of the Integra) over 100K...

What's gonna' hurt? A mpg, maybe?

Cheers!


Would I be able to run T6 5w 40 in my cars as well? I'd like to know, be nice to have everything use the same oil.

I change the cutlass oil about every 6 months, wife doens't drive enough for miles to add up.

Civic is every 6k or 7k when the MM goes off and been seeing the dealer on that one so dealer bulk.

Been thinking of doing it myself though, dealer only charged 18.95 though.
 
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They are excessively viscous for most cars. When you gain 2% in mileage going from 10w30 to 0W-20, a HDEO will be even much more. Adds up to quite a bit more in fuel every year.
 
I can't imagine why any car that spec's a 5w30 conventional would ever have a problem with a 5W-40 synthetic... Or a Honda motorcycle that spec's a 10W-40.

Maybe in Nome, but not in the Land of The Buckeyes?

Cheers!
 
I think the GS300 is the I6 like the IS300 and not the V6 that's sludge prone. If that's the case a 5-40 could probably work in anything you have. Not sure I'd want a thicker (at startup) 15-40 in the wintertime. I worry more about starting my cars than you might in VA, though.

So maybe little downside (in fuel economy, winter starting, free revving on the Prelude/Integra) and the upside I guess of a one size fits all. Up to you...

But if you do...


55 gallon drums, make it happen!
 
One of the local agencies in the Parish I worked for ran nothing but Rotella or Super S 15w40 in their crown vics which were rated for 5w-20 or 30 depending on year model. They all ran a long, long time. I bet they burned a little extra gas doing it though.
 
Originally Posted By: Scotty1981
So I don't want to do this because it will severly impact my MPG?

Severely is too strong of a word, IMO.
 
Originally Posted By: Quattro Pete
Originally Posted By: Scotty1981
So I don't want to do this because it will severly impact my MPG?

Severely is too strong of a word, IMO.


Agreed. I doubt one could even measure a difference accurately enough to detect the difference between a 5w30 and T6 5w40.
 
I use HDEO, blended with some closeout synthetic PCMO, in my vehicle as well as neighbors and friends vehicles. IMO....this seems to really help in the sweltering heat.... especially during the summer in stop and go traffic and short trips.

I had nothing but great comments from the vehicle owners that I put a blended mix in for last summers run.

I picked up quite a few gallon jugs of HDEO at Commissary locations, Kmart closeout extravaganza sales and really good sales with rebates. All the HDEO that I have is from the majors so blending a 50/50 or 60/40 mix of PCMO in Synthetic or Conventional oil on sale and closeout is a great way to get the benefits of a HDEO and a PCMO into your sump.

I'm running a blended mix of Chevron Delo and Peak Full Synthetic now. The Peak Full Synthetic....$1.95 a quart from the Advance closeout and the Delo from a sale for under $10 a gallon.

I have Valvoline Premium Blue with NAPA full synthetic 0w-20 running in some other vehicles, Delvac with Mobil Super Synthetic 0w-20 running in others and I'm about to put in some Shell Rotella 15w40 blended with QS Full Synthetic in 0w-20, 5w-20 or Formula Shell Full Synthetic 5w-20 this Saturday.

IMO...the blended mixes of HDEO and PCMO all run fine and really make the engine run smooth and quiet. The HDEO helps with fuel dillution and keeping the engines clean especially with stop and go traffic.
 
Shell Rotella T5 looks very promising...and I was considering running it for 6k intervals in my 88 Aries
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Over on the "Mopar Forums" at allpar.com - there's many folks there running HDEO oils in their older model/high mileage vehicles without any ill effects....

Now granted, some of these are used for show, some for performance, and some as daily drivers.....mine falls into the "daily driver" category.....

I'm one in the "thinner is better crowd" personally....so I have not thought of going from a 5w30 (which is what I typically run in it...currently Pennzoil SN rated oil...) to a 15w40....BUT, the 5W-40 Rotella doesn't seem like that bad of a jump.....

I'd just be worried, particularly if the vehicle is a "short tripper" - if I'm thinking this correctly....the thicker oil (5W-40 vs. 5w30) will take longer to reach "operating temperature".....and so the 5W-40 could possibly be detrimental for short trips...? Or am I over thinking this
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Granted....in my case, most of my miles are highway runs....15 mins/9 miles or so at a consistent 50-70 MPH.....


But the 5W-40 HDEOs are typically labeled "synthetic" and, come with the upcharge
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I think last I checked, the Mobil 1 5W-40 (which is labeled "Turbo Truck & Diesel....?) is priced at $26 for a gallon (4 quarts....) which really....would fit my application fine :P Since my crankcase is 4 quarts
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I have seen the dark purpl-ish bottle of Rotella, rated 5W-40, and it was a tad cheaper than the Mobil 1 Turbo Diesel....

Both appeared to have the same specs....API SM was the primary concern and selling point; as well as the typical "diesel specs"


Then, I was also contemplating a 15w40 concoction
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With 1 pint of MMO.....to "thin it out" a bit" - since I'm uneasy running a 15w40 in it, since mine has only 55k on the clock (got it with 25k or so......sat for most of it's life as a grocery getter and church-goer :P).

I know theirs allpar guys running 15W40 in similar engines....BUT, there's are higher mileage, some are tuned/moded, and then others are stictly "show" cars
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