Sythetic Oil

Omar MSP

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Contributor
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Mazda Mazdaspeed Familia
Synthetic Oil

so i'm using this Quakerstate Advance Syntec... i like it. I was using Royal Purple but it really didn't notice the difference with Quakerstate.

wat brands do yall use, and are u happy with it?
 
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mobil 1 since i bought the car brand new in 2003,no complaint,i used it in my 1995 protege too,bought that one new,did 190miles on it,never had any problems....

so i am sold to mobil 1,hahahaha...

thats also what i run in the tranny,and it is a really good upgrade over the conventionnal dealer oil.....
 
Red Line 10W-30 synthetic engine oil; Red Line MT-90 synthetic transmission oil.
 
I don't think there is a big (or any) difference at all between synthetics of major brands. they are all good. i use mobil1 myself. now, if you get sythetic oil at your local dollar store.......
 
In order of best to just-under-the-best:

Redline
Amsoil
Royal Purple


...Although other than scientific tests, you won't notice a difference.

fyi, I use Royal Purple
 
castrol syntec 10w30

its all the same in the long run. Technology is very good between all the companies

Matt
 
Since this is a thread about synthetic oil, I have to mention that Castrol Syntec is NOT a true synthetic oil although, for reasons I won't go into now, it can be marketed as one.

Of the five classes of oil base stocks recognized by the American Petroleum Institute (API), Groups I-III are classified as mineral oil base stocks and Groups IV and V are recognized as synthetic base stocks.

Castrol Syntec is derived from a hydrocracked Group III petroleum-based stock, while Amsoil and Mobil 1 are derived from the Group IV, polyalphaolefin (PAO) synthetic base stock and Red Line is formulated from the Group V Polyol ester synthetic base stock.
 
goldstar said:
Since this is a thread about synthetic oil, I have to mention that Castrol Syntec is NOT a true synthetic oil although, for reasons I won't go into now, it can be marketed as one.

Of the five classes of oil base stocks recognized by the American Petroleum Institute (API), Groups I-III are classified as mineral oil base stocks and Groups IV and V are recognized as synthetic base stocks.

Castrol Syntec is derived from a hydrocracked Group III petroleum-based stock, while Amsoil and Mobil 1 are derived from the Group IV, polyalphaolefin (PAO) synthetic base stock and Red Line is formulated from the Group V Polyol ester synthetic base stock.
yep i read the same s***,thats why i stopped using it.i did a lot of research before i started using Amsoil.
 
goldstar said:
Since this is a thread about synthetic oil, I have to mention that Castrol Syntec is NOT a true synthetic oil although, for reasons I won't go into now, it can be marketed as one.

Of the five classes of oil base stocks recognized by the American Petroleum Institute (API), Groups I-III are classified as mineral oil base stocks and Groups IV and V are recognized as synthetic base stocks.

Castrol Syntec is derived from a hydrocracked Group III petroleum-based stock, while Amsoil and Mobil 1 are derived from the Group IV, polyalphaolefin (PAO) synthetic base stock and Red Line is formulated from the Group V Polyol ester synthetic base stock.

the exception is castrol syntec 0W30 and 5W40
 
Yes. Castrol Syntec European Formula (made in Germany) is a true synthetic oil. As TheMAN stated, it's made in two viscosity grades: 0W-30 and 5W-40.

The regular Castrol Syntec is produced in America.
 
I use Mobil 1 5W30, preferably the extended formula
The best oil imo is Motul (made in France) but is very expensive. Since I change the oil every 5000km (3000 Miles), Mobil 1 is quite adequate
 
urbanbiker said:
goldstar - castrol rates the 10w30 as well as 5w30 as group IV on their website here is the link

http://www.castrol.com/castrol/genericarticle.do?categoryId=82915470&contentId=6006933

either things have changed or you got some wong information from someone

matt

You are misinterpreting the info Castrol provides on the listed website. Nowhere do they specify the oil's constituents or the API Group basestock from which it is derived. If you are referring to the ILSAC GF-4 rating, this has nothing to do with the API Group IV PAO basestock designation.

ILSAC (International Lubricants Standardization and Approval Committee) is a US-based standard under the control of the API. It sets the standards for performance specifications and suitability of oils for various operating environments and has NOTHING to do with the base stocks from which engine oil is derived.

Nothing has changed and the information I posted is completely correct. Castrol Syntec is derived from hydrocracked Group III petroleum base stock and therefore is NOT a true synthetic oil.
 

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