are syn blends that much better than conventional oil? motor craft syn blend is cheaper than pbyat walmart mobil clean is cheaper than both of them durablend cost more than all of the above.iam really confused on the subject.
syn blends
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Originally Posted By: ernied
iam really confused on the subject.
Join the crowd
iam really confused on the subject.
Join the crowd
M1 5w30 is a syn blend
I think they can be - depending on what you want the oil to do in practice ( better vI without as much Vii, better cold flow) though I think there exist no On-the-Road data that proves one way or the other.
OP:
Well, Facts: Mobil guarantees their MC7500 to go 50% longer OCI than their MC5K. But, You asked in a roundabout way if MCSS was better than PYB. I think each oil has its strongsuits, but PYB is such a stellar F.E. oil for normally driven cars and so smooth its hard not to blanket recommend it for "normal" operation.
Well, Facts: Mobil guarantees their MC7500 to go 50% longer OCI than their MC5K. But, You asked in a roundabout way if MCSS was better than PYB. I think each oil has its strongsuits, but PYB is such a stellar F.E. oil for normally driven cars and so smooth its hard not to blanket recommend it for "normal" operation.
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What needs to happen, but will not is to define what is a syn blend. MC7500 (syn blend) can be used 50% longer than conventional oil, but is that due to the PAO content or the addpack?
If you stretch the definition all motor oils are blends due to the % of addpack, but that's not what the consumer interprets a syn blend to be: mix of base oils.
I like to use Mobil oils as a guideline to determine the how long I use a particular oil.
1)Mobil Clean 5000..Conventional oil good for 5,000 miles
2)Mobil Clean 7500..Conventional/Synthetic oil blend good for 7,500 miles.
3)Mobil 1... Synthetic oil good for 10,000 miles
I'm sure those numbers are based on normal driving conditions ...mostly highway...no towing...no turbo.
1)Mobil Clean 5000..Conventional oil good for 5,000 miles
2)Mobil Clean 7500..Conventional/Synthetic oil blend good for 7,500 miles.
3)Mobil 1... Synthetic oil good for 10,000 miles
I'm sure those numbers are based on normal driving conditions ...mostly highway...no towing...no turbo.
ernied -
Are they that much better?
No.
But of course they are better to some degree.
I think that most 5-20s have to be part synth to qualify for their tough specs.
Are they that much better?
No.
But of course they are better to some degree.
I think that most 5-20s have to be part synth to qualify for their tough specs.
Funny this came up, because last night I was reviewing the product sheets for Citgo Supergard oil. In what appears to be a blurring of the classifications, they don't even offer a conventional 5w30 or 5W-20; the only oils they make in that viscosity are blends. Only 10w-30 in a conventional oil.
All viscosity grades exceed requirements for API SL, SJ and obsolete category SH SERVICE
CATEGORIES: SAE 5W-20 and SAE 5w30 are synthetic blends with API SM and ILSAC GF-4.
• SAE 10W-30 – Meets the fuel economy requirements and performance requirements of API/Energy Conserving.
• SAE 5W-20 and 5w30 – Meet the performance requirements of Ford WSS-M2C 930-A and M2C929-A respectively.
• SAE 5W-20 – Meets the performance requirements of Honda SAE 5W-20 specification.
• SAE 5w30, 5W-20 – Meets the performance requirements of General Motors GM6094M.
Perhaps 5W-20 and 5w30 are so widely used and have additional mfg specs it is not worth producing a product that does not meet them.
All viscosity grades exceed requirements for API SL, SJ and obsolete category SH SERVICE
CATEGORIES: SAE 5W-20 and SAE 5w30 are synthetic blends with API SM and ILSAC GF-4.
• SAE 10W-30 – Meets the fuel economy requirements and performance requirements of API/Energy Conserving.
• SAE 5W-20 and 5w30 – Meet the performance requirements of Ford WSS-M2C 930-A and M2C929-A respectively.
• SAE 5W-20 – Meets the performance requirements of Honda SAE 5W-20 specification.
• SAE 5w30, 5W-20 – Meets the performance requirements of General Motors GM6094M.
Perhaps 5W-20 and 5w30 are so widely used and have additional mfg specs it is not worth producing a product that does not meet them.
All I know is that many people love mc blend, and for good reason.
Originally Posted By: ProfPS
What needs to happen, but will not is to define what is a syn blend. MC7500 (syn blend) can be used 50% longer than conventional oil, but is that due to the PAO content or the addpack?
If you stretch the definition all motor oils are blends due to the % of addpack, but that's not what the consumer interprets a syn blend to be: mix of base oils.
Since M1 5w30 is 30% PAO (by MSDS) what does that make it? I used to say this jokingly but if many 'Full Synthetic' dont have any synthetic oil in them what is one to do with an oil with 20% synthetic oil?
What needs to happen, but will not is to define what is a syn blend. MC7500 (syn blend) can be used 50% longer than conventional oil, but is that due to the PAO content or the addpack?
Since M1 5w30 is 30% PAO (by MSDS) what does that make it? I used to say this jokingly but if many 'Full Synthetic' dont have any synthetic oil in them what is one to do with an oil with 20% synthetic oil?
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