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Old 10-10-2008, 12:20 PM   #1
Spartus
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Default Anyone using Rotella T or any other HDEO oil in their engine?

Right now I use MaxLife Semi-Synthetic 5w-30 in my girlfriend's '97 Saturn SL2. The car has about 166k miles and burns about 1-1.5 qts. every 1k miles.

It seems MaxLife is not at all slowing down consumption versus regular dino oil like Valvoline and Pennzoil.

I've done Auto-RX on the car about 30k miles ago.

I'm thinking of switching to a heavy duty oil such as Rotella T 10w-30 HDEO as these are more robust, resist burn off more and have a stronger additive package. Anyone using these? Anyone against these?

On a side note. The car does not have any visible smoke during the day while I drive. I did notice a few nights ago when it was dark and I had headlights behind me, that when accelerating hard, a lot of smoke was visible in the rear view mirror due to the headlight "fog effect" behind me. Is smoke during WOT and oil burning related? Is there a cure?

Please note, the car does not see many WOT run's. This was a one time thing to check for smoke at night since it is not visible during the day, after the car was fully warmed up, and WOT began going from 15 mph to 50 mph.

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Old 10-10-2008, 12:58 PM   #2
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Default Re: Anyone using Rotella T or any other HDEO oil in their engine?

I used a 5 gal pail of HDEO over several oil change intervals in my 95 sl2 during the summer months a couple years ago. I couldn't tell much difference in oil usage, but no apparent adverse effects either. I haven't found any cheap deals on it lately (I got that one pail for $2 after rebate) but I'd run it again if I could find a sale.

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Old 10-10-2008, 01:51 PM   #3
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Default Re: Anyone using Rotella T or any other HDEO oil in their engine?

The best stuff I've found so far for oil consumption vs cost (assuming you can get it for $2/quart - it may be higher now) is Pennzoil yellow bottle 5W20. I know this sounds counter-intuitive but that's based on a 4000 mile OCI with one quart consumed. (My Sat is a 97 SOHC with 134,000 miles).

Over on BITOG there's a guy named Dr. A E Haas who has presented a theory that thin oils actually seal better at the ring / piston / cyl wall interface.

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Old 10-10-2008, 01:54 PM   #4
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Default Re: Anyone using Rotella T or any other HDEO oil in their engine?

I've been using Rotella-T 5w-40 for a while now. It's not cheap but, I like the extra detergents. It claims to be synthetic but, it's not really PAO. It's group III oil. Still good stuff.

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Old 10-10-2008, 02:27 PM   #5
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Default Re: Anyone using Rotella T or any other HDEO oil in their engine?

I am a member at BITOG and have read A E HAAS' theory. I wonder if the 5w-20 is safe to use in our engines that are spec'd for 5w-30. I also assume you see an increase in gas mileage with 5w-20?

The Rotella T I was referring to is regular 10w-30 dino commonly found at WalMart for ~$9 per gallon.

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Old 10-10-2008, 03:37 PM   #6
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Default Re: Anyone using Rotella T or any other HDEO oil in their engine?

Quote:
Originally Posted by Spartus View Post
I am a member at BITOG and have read A E HAAS' theory. I wonder if the 5w-20 is safe to use in our engines that are spec'd for 5w-30. I also assume you see an increase in gas mileage with 5w-20?

The Rotella T I was referring to is regular 10w-30 dino commonly found at WalMart for ~$9 per gallon.
If you read Haas then you saw his mention of flow being critical. Worn oil pumps suffer from low flow. If the flow is good then 5w-20 will work. I would experiment with a PAO synthetic if I wanted to do that though. Buy a bit of engine insurance.

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Old 10-10-2008, 04:37 PM   #7
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Default Re: Anyone using Rotella T or any other HDEO oil in their engine?

Quote:
Originally Posted by BarnOwl View Post
I've been using Rotella-T 5w-40 for a while now. It's not cheap but, I like the extra detergents. It claims to be synthetic but, it's not really PAO. It's group III oil. Still good stuff.
I tried this too for about 4 oil changes in the early summer and it made my lifters clack something nasty for the first 10 minutes... plus some bearing knock at startup and just overall too noisy. Even though it's a synthetic 5w40 it still bogged the oil pump at startup too. Oil consumption of 2 quarts every 2,500 miles was unchanged since it thins out when up to temp.

Diesel oils are formulated differently and gasoline oils are not typically recommended for use in diesels either.

If your engine is a bit loose and your car likes it great... just be careful.

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Old 10-10-2008, 04:45 PM   #8
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Default Re: Anyone using Rotella T or any other HDEO oil in their engine?

If I'm not mistaken, all the Rotellas are classified as fleet oils and okay to use in either one. I've put that oil in 5 Saturns and not experienced any of the problems you mentioned. YMMV though.

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Old 10-10-2008, 07:02 PM   #9
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Default Re: Anyone using Rotella T or any other HDEO oil in their engine?

Quote:
Originally Posted by Muskas_Daddy View Post
Diesel oils are formulated differently and gasoline oils are not typically recommended for use in diesels either.
The amount of zinc, phosphorus and the TBN is higher in a diesel rated oil. You can run the "Cx" rated oils in a gas engine but do not run "Sx" rated oils in a diesel unless the oil has a dual "Sx/Cx" rating.

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Old 10-10-2008, 10:55 PM   #10
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Default Re: Anyone using Rotella T or any other HDEO oil in their engine?

the only thing I ever heard bad about running a Rottella type oil in a gas motor was the detergent package is very aggressive and can cause problem on an older motor as it loosens up the phlegm inside. If the motor is pretty clean I can't see where it would cause any other problems at all. I'll stay with my regular oil for now. Uses to much to worry about a full synthetic...I'd just be burning more money!!

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Old 10-10-2008, 10:59 PM   #11
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Default Re: Anyone using Rotella T or any other HDEO oil in their engine?

Quote:
Originally Posted by Spartus View Post
Right now I use MaxLife Semi-Synthetic 5w-30 in my girlfriend's '97 Saturn SL2. The car has about 166k miles and burns about 1-1.5 qts. every 1k miles.
Did the car have the Saturn TSB recommended valve guides and/or piston rings replaced? When mine was consuming oil beyond what Saturn considered "normal", I had a consumption test done and the valve guides and piston rings were replaced. That reduced oil consumption to the "normal" amount depending on how hard I drove the car and revved the engine. I only use 5W-30

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Old 10-10-2008, 11:12 PM   #12
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Default Re: Anyone using Rotella T or any other HDEO oil in their engine?

I used M1 Clean 5000 w/o issues and slowed it down quite abit. Later on used Pennzoil 5w-30 or 10w-30/40 dino No syth. here I personally dont like syth and extra cost is only justified in a corvette or something like that....

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Old 10-11-2008, 03:21 AM   #13
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Default Re: Anyone using Rotella T or any other HDEO oil in their engine?

Quote:
Originally Posted by eRic 02sc2 View Post
Did the car have the Saturn TSB recommended valve guides and/or piston rings replaced? When mine was consuming oil beyond what Saturn considered "normal", I had a consumption test done and the valve guides and piston rings were replaced. That reduced oil consumption to the "normal" amount depending on how hard I drove the car and revved the engine. I only use 5W-30

I don't think the TSB was done. Is this something the dealer would do for free?
I assume not since this is not a recall.

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Old 10-12-2008, 11:14 AM   #14
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Default Re: Anyone using Rotella T or any other HDEO oil in their engine?

Quote:
Originally Posted by Spartus View Post
I don't think the TSB was done. Is this something the dealer would do for free?
I assume not since this is not a recall.
A TSB does not equal a recall. They would do it free under the warranty but, given that the newest s-series out there is 6 years old, you aren't going to get it done under warranty.

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Old 10-12-2008, 11:15 AM   #15
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Default Re: Anyone using Rotella T or any other HDEO oil in their engine?

i use rotella T 5w30 synthetic in my daughters '95. i started using it after doing an MMO soak. i did notice a reduction in oil consumption. though i cant say if it was due to the oil, the MMO soak or her driving habits. my main reason for going with this oil was the extra detergents in it. but still i can tell how aggressively she's been driving by the amount of oil i have to top off each week. if she babies it i don't have to put any in at all. but if she's doing a lot of WOT 1-1 1/2 quarts is common.

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Old 10-13-2008, 12:33 PM   #16
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Default Re: Anyone using Rotella T or any other HDEO oil in their engine?

Quote:
Originally Posted by Spartus View Post
I wonder if the 5w-20 is safe to use in our engines that are spec'd for 5w-30. I also assume you see an increase in gas mileage with 5w-20?
Well it didn't blow up in 4000 miles, so I assume it's OK.
As for as gas mileage, my view is that the difference is too small to notice.
If anything, the mileage went down, but that was because warmer temps meant more A/C usage, which IS a big influence - sometimes 2 or 3 mpg out of 35.

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Old 10-13-2008, 12:58 PM   #17
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Default Re: Anyone using Rotella T or any other HDEO oil in their engine?

Quote:
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i use rotella T 5w30 synthetic in my daughters '95. i started using it after doing an MMO soak.
Where do you get Rotella T 5w-30? I've only found 5w-40.

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Old 10-13-2008, 03:28 PM   #18
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Default Re: Anyone using Rotella T or any other HDEO oil in their engine?

Rotella???

Whats not to love??

Its a Group III synthetic loaded with cleaning agents and acid dispersants, designed for heavy-duty use in the hardest working engines.

If it works for a KW or Freightliner, it'll work in a Satty 1.9.

The dino 15w40 works great as well, and for the same reason.
Maybe you can mix 2 qts 5w20 and 2 qts 15w40 and make a "winter blend"??

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Old 10-13-2008, 08:34 PM   #19
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Default Re: Anyone using Rotella T or any other HDEO oil in their engine?

Regarding the "smoke" at WOT. The DOHC runs pretty rich at WOT because it is in "open loop" and the PCM maps tend to be rich in that mode. You could be seeing smoke caused by unburnt fuel. Burning oil is medium to light gray, unburnt fuel is dark gray to black. Coolant is nearly pure white.

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Old 10-13-2008, 09:04 PM   #20
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Default Re: Anyone using Rotella T or any other HDEO oil in their engine?

Quote:
Originally Posted by BarnOwl View Post
Where do you get Rotella T 5w-30? I've only found 5w-40.
I think he meant Rotella T 10w-30. Shell does not make 5w-30 in the Rotella T flavor.

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