I was in Wally's today, and was checking the back of all of the High Mileage oils to see if any were "Energy Conserving" for the wife's PT Cruiser. I found that Supertech HM is the only one with the certification on the back. No where to be found on MaxLife, Castrol HM, Mobil HM, Pennzoil HM, and Quaker State HM. I was under the impression that the EC label was based on the viscosity of the oil, so my question is does only Supertech HM stay within grade, or am I confused on the use of this certification?
Supertech HM the only Energy Conserving?
- Thread starter jeepman
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Mobil's conventional HM oil is also (energy conserving)...
But they only sell it in 10w 30. Yes, Jeepman, I don't understand this either, and wish that Maxlife was energy conserving. I'm using it and loving it, but that is the only thing I don't like about it.
But they only sell it in 10w 30. Yes, Jeepman, I don't understand this either, and wish that Maxlife was energy conserving. I'm using it and loving it, but that is the only thing I don't like about it.
Energy Conserving compared to what? That sounds like a relative term if I've ever heard one. If you and I have two identical cars going in two identical directions at two identical speeds - you hold your foot on the gas pedal to the red light and I let my foot off the gas and coast the rest of the way, my oil has just became energy conserving.
Merkava, it's back to the API 101 Class on service grades & the donut for you!
http://api-ep.api.org/certifications/engineoil/categories/upload/EngineOilGuide2006.pdf
As G-Man explained, an oil has to pass the GF-4 fuel economy test, run against a PAO based reference oil, to earn the API "Energy Conserving" label.
Then someone explain to me how Mobil did it with their Conventional HM oil that is energy conserving...the one with the black cap. I'm not talking about the synthetic HM oil. I'm talking about the conventional HM, and yes, it is energy conserving. How?
How much of an energy savings are we talking about when comparing 10w30 to 10w30 HM?
Traditionally, HM oils are at the upper range of the 30 weights - from 11.5 thru 12 cSt.
Take a look at the Mobil Clean Hi Mileage Product Data Sheet , keep in mind G-Man's comment & you should be able to answer your own question!
Take a look at the Mobil Clean Hi Mileage Product Data Sheet , keep in mind G-Man's comment & you should be able to answer your own question!
I already know that HM oils are on the upper end of their viscosity range, which leads me to the question of what would be the difference in fuel mileage between an oil of 10.5 cSt and one of 12.0 cSt @100C?
HM is no different than any other 30 Weight.
Energy conserving is code for "on the thin end of the 30 weight spectrum"
So if you want a "thin" 30 Weight with maybe a little extra detergent and maybe some extra seal conditioners you buy a HM that is Energy Conserving. If you want something on the "thick" end you are very careful to avoid the "Energy Conserving" Oils.
Energy conserving is code for "on the thin end of the 30 weight spectrum"
So if you want a "thin" 30 Weight with maybe a little extra detergent and maybe some extra seal conditioners you buy a HM that is Energy Conserving. If you want something on the "thick" end you are very careful to avoid the "Energy Conserving" Oils.
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