For a vehicle that burns oil (Saturn) or any other vehicle in general, which is the more beefed up oil that is less resistant to burn off, provides the best protection and has the greater cleaning ability- Maxlife Synthetic Blend 10w30 or Rotella T HDEO 10w30?
Maxlife Syn. Blend vs. Rotella T HDEO
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I would say the HDEO for cleaning and protection, but the synth. blend would be more resistant to burn off. Look up their Product data sheets and run the numbers.
Id go with the 5W30 Maxlife and call it a day.
I always thought the HDEO would be more resistant to burn off.
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Originally Posted By: Spartuss
I always thought the HDEO would be more resistant to burn off.
I would think it would be.
I always thought the HDEO would be more resistant to burn off.
I would think it would be.
Seems like the consensus varies. Anyone else care to chip in?
Which is the better oil of the two and will resist burn off the most?
Which is the better oil of the two and will resist burn off the most?
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Well, which engine would be harder on oil? Somebody's high-mileage junker or a Transport engine pulling God knows what, with massive amounts of Turbo heat being generated....?
Logic would dictate the HDEO being the "tougher" formulation.......
Logic would dictate the HDEO being the "tougher" formulation.......
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I would say that Rotella 10w30 may fatigue slower. I don't see burning from ring issues being altered by the detergent dispersant or anti acid formation agents involved. I could be wrong
Originally Posted By: greenaccord02
I would say the HDEO for cleaning and protection, but the synth. blend would be more resistant to burn off. Look up their Product data sheets and run the numbers.
Actually, the MaxLife burned a little more in my ol' Saturn SL2. Not by a lot, but it typically used about a quart every 3000 miles with synthetic oil, about ever 2000-2500 with MaxLife 10w30...
I still love MaxLife though, but whatever you use in those engines will do little to stem the burn unless it's a little thicker. I'd use 15w40 for summer...
Some claimed they did better with synthetics such as Rotella 5W-40...
I would say the HDEO for cleaning and protection, but the synth. blend would be more resistant to burn off. Look up their Product data sheets and run the numbers.
Actually, the MaxLife burned a little more in my ol' Saturn SL2. Not by a lot, but it typically used about a quart every 3000 miles with synthetic oil, about ever 2000-2500 with MaxLife 10w30...
I still love MaxLife though, but whatever you use in those engines will do little to stem the burn unless it's a little thicker. I'd use 15w40 for summer...
Some claimed they did better with synthetics such as Rotella 5W-40...
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Long before there were high mileage oils, many guys considered the HDMOs as high mileage oils. Most of them still do. I kind of HDMOatize my high mileage oil with zddp booster.
What's the difference between HDEO & HDMO?
Originally Posted By: Spartuss
What's the difference between HDEO & HDMO?
Nothing!
What's the difference between HDEO & HDMO?
Nothing!
Well, no, there is a difference. From the little I know the difference is that HDMO has the following features vs PCMO:
dual rated diesel and gasoline
higher levels of zddp
lower ash
higher TBN
dual rated diesel and gasoline
higher levels of zddp
lower ash
higher TBN
Even if it does, it shouldn't be too big of a problem. The 10w30 Rotella T has a pour point of -30 degrees.
Originally Posted By: TallPaul
Well, no, there is a difference. From the little I know the difference is that HDMO has the following features vs PCMO:
dual rated diesel and gasoline
higher levels of zddp
lower ash
higher TBN
TP,
Well, yes there is a difference between PCMO & HDEO but, Spartuss was asking what the difference is between HDMO & HDEO
Well, no, there is a difference. From the little I know the difference is that HDMO has the following features vs PCMO:
dual rated diesel and gasoline
higher levels of zddp
lower ash
higher TBN
TP,
Well, yes there is a difference between PCMO & HDEO but, Spartuss was asking what the difference is between HDMO & HDEO
I recently did an oil change with Maxlife 5w-20 and (about 1000 miles ago) and was surprised to find myself a quart low today.
I topped off with 15w40 Rotella thinking it would remedy this.
I have to do about 600 miles of driving this week, so we'll see if it helps. I was thinking the Maxlife would be resistant to such things, but my engine is very high mileage and gets pushed pretty hard.
I topped off with 15w40 Rotella thinking it would remedy this.
I have to do about 600 miles of driving this week, so we'll see if it helps. I was thinking the Maxlife would be resistant to such things, but my engine is very high mileage and gets pushed pretty hard.
Well, PCMO is Passenger Car Motor Oil. I assume this is the standard oil we see on most store shelves-Pennzoil, Valvoline, Mobil 1, Mobil, etc...
HDEO & HDMO I assume are both the same. Both rated for diesel and heavy duty engines.
Are HDEO & HDMO synthetic blend or are they just very robust dino oil with a strong additive package?
I am thinking strongly of switching my girlfriend's Saturn SL2 which burns oil from MaxLife 5w30 to a HDEO of similar weight. I know most come in 10w30. Are there any in 5w30 flavor's that are easily found? Hopefully the HDEO will burn at a slightly less rate. I do want to stick with the factory recommended weight of 5/10w-30 to preserve gas mileage. I know the 10w-40 & 15w40 will burn even less in theory, but with winter coming up and they both being not factory recommended weights, steers me away.
HDEO & HDMO I assume are both the same. Both rated for diesel and heavy duty engines.
Are HDEO & HDMO synthetic blend or are they just very robust dino oil with a strong additive package?
I am thinking strongly of switching my girlfriend's Saturn SL2 which burns oil from MaxLife 5w30 to a HDEO of similar weight. I know most come in 10w30. Are there any in 5w30 flavor's that are easily found? Hopefully the HDEO will burn at a slightly less rate. I do want to stick with the factory recommended weight of 5/10w-30 to preserve gas mileage. I know the 10w-40 & 15w40 will burn even less in theory, but with winter coming up and they both being not factory recommended weights, steers me away.
Originally Posted By: Char Baby
Originally Posted By: TallPaul
Well, no, there is a difference. From the little I know the difference is that HDMO has the following features vs PCMO:
dual rated diesel and gasoline
higher levels of zddp
lower ash
higher TBN
TP,
Well, yes there is a difference between PCMO & HDEO but, Spartuss was asking what the difference is between HDMO & HDEO
Oh man, I have to slow down and read more carefully.
But here's a good question:
PCMO is typically SM and has no C rating, but some do have a weak C rating and are still PCMO.
When there is both the SM (gasoline) and a strong C rating (diesel), then it is fleet oil and/or HDMO.
But what is it called when it has no S rating, just the C rating (diesel only)?
By the way, a Valvoline tech told me there is no reason I can't run diesel only oil in my gasoline engine. I think he is right, though in the past I had a strange impression that it would be bad for your engine (not talking late model, but my '95 for example).
Originally Posted By: TallPaul
Well, no, there is a difference. From the little I know the difference is that HDMO has the following features vs PCMO:
dual rated diesel and gasoline
higher levels of zddp
lower ash
higher TBN
TP,
Well, yes there is a difference between PCMO & HDEO but, Spartuss was asking what the difference is between HDMO & HDEO
Oh man, I have to slow down and read more carefully.
But here's a good question:
PCMO is typically SM and has no C rating, but some do have a weak C rating and are still PCMO.
When there is both the SM (gasoline) and a strong C rating (diesel), then it is fleet oil and/or HDMO.
But what is it called when it has no S rating, just the C rating (diesel only)?
By the way, a Valvoline tech told me there is no reason I can't run diesel only oil in my gasoline engine. I think he is right, though in the past I had a strange impression that it would be bad for your engine (not talking late model, but my '95 for example).
Spartuss,
Some PCMO's have the ability to be used in diesel engines and as TallPaul has mentioned are so designated with a "C" or "CF"(or what ever their using today), along with the "S" designation,(SL/SM). The only PCMO motor oils that I have found listed this way are Synthetic but, that's not to say that the "C" designation doesn't apply to dino PCMO's. These particular PCMO's could be used(even if it's not ideal) for small 4cyl diesels such as a VW diesel for example.
HDEO/HDMO can be dino, syn blends or full syn I suppose. They are known for being very robust in their addative packages as well as being very good oils for "Soot Control", in which diesel engines produce.
TP,
I would say that an oil with a "C"(Commercial) rating is for use in diesel engines.
And I fully agree with the Valvoline tech about using HDEO's in a PCMO application. My Brother-in-Law has been doing this for over 30 years in his Buick/Olds/Pontiac/Chevy cars and trucks that run on gasoline. He loves HDEO's although not in the kids 4cly runnabouts. Tooa tick! He says...Tooa Tick!
Some PCMO's have the ability to be used in diesel engines and as TallPaul has mentioned are so designated with a "C" or "CF"(or what ever their using today), along with the "S" designation,(SL/SM). The only PCMO motor oils that I have found listed this way are Synthetic but, that's not to say that the "C" designation doesn't apply to dino PCMO's. These particular PCMO's could be used(even if it's not ideal) for small 4cyl diesels such as a VW diesel for example.
HDEO/HDMO can be dino, syn blends or full syn I suppose. They are known for being very robust in their addative packages as well as being very good oils for "Soot Control", in which diesel engines produce.
TP,
I would say that an oil with a "C"(Commercial) rating is for use in diesel engines.
And I fully agree with the Valvoline tech about using HDEO's in a PCMO application. My Brother-in-Law has been doing this for over 30 years in his Buick/Olds/Pontiac/Chevy cars and trucks that run on gasoline. He loves HDEO's although not in the kids 4cly runnabouts. Tooa tick! He says...Tooa Tick!
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