Phyer Phyter

Ya I cant stand those guys either.

Phyer Phyter

Most "High Mileage" products that I am aware of are non synthetic. I was not aware of the Mobil 1HM or the Valvoline Maxlife. Looking into the Valvoline product it states that it is a "synthetic blend". You only need 1 drop of something synthetic in the formulation to be able to call it synthetic blend. I am only aware of one product that the mfgr states that it is 50/50 - half synthetic and half conventional.

justintendo

extremely blurred lines when it comes to naming of oils...unless its a group 4 or 5 it has some amount of crude but thats ok. the refinement technology is so much better than it was 10 or 20 years ago. any oil meeting api spec will get the job done.
some of us just like to overpay and get the best or "good for the money" add packs.

David Young

I was sadden to find out the 'synthetic blend' oil I 'was' using in my Mustang 'could' have less than a 'cap' of synthetic oil in the 'quart' bottle to still be called 'synthetic blend' . I changed to a different brand

Brandon587

That's good to know, wasn't aware of that but I'm honestly not at all surprised. Either way though, at 254,000 miles on original engine and trans, I can't much complain about the job the oil has done. I'm expecting a lot more. Whenever I build the engine and trans though, I'll probably swap to full synthetic mobile one, which is what I run in my wife's 2015 civic.

Brandon587

Nice chart! I like that. Any idea if there are any more recent ones? I know you say it hasn't changed much since, but just curious

justintendo

do some digging around their site, they test tons of oils..they find alot of no name or house brands that are very serviceable, but at the same time many that do not meet spec. some even advertise they do meet specs, but the tests call them out.
also interesting to see "big name" oils that are weak on their add pack or just lesser quality...mobil, valvoline, pennzoil are always safe bets for a good synthetic and can always be found on sale by the savvy shopper. sometimes a good conventional like mobil super outperforms a higher dollar oil.


stuff like this is hilarious, but not if you are the poor bastard that uses it! read the labels! this stuff must be poorly recycled oil im thinking. there are very low amounts of wear additives..
http://www.pqiadata.org/BlackKnight1030.html
have no idea what this stuff is..
http://www.pqiamerica.com/citystar.htm

Patriotic Oath

High mileage oil comes in synthetic and conventional oils and YES IT HAS ADDITIVES... These additives are definitely to seal leaks in old worn/hardened seals and gaskets.

DO NOT USE THEM IF YOU DO NOT HAVE A SEEPING ISSUE...

If you do, you will have to use ‘High Mileage Oil’ forever or YOU WILL HAVE OIL LEAKS!

You can ask any Automotive Oil engineer or Tech they can and will/should be able to explain what the additives do to a good running engine.

16IngotFX4

If you are talking about the OP or those first few, your advice is probably not applicable as the original conversation is now 6 years old, making those with even higher mileage motors than they already were.

Patriotic Oath

I was adding to the conversation knowing, as do I, that many new or new to the thread readers could use the information, which would be, current to them today. Do you disagree that these threads are read by people looking for information long after they were originally posted?

Have a Great Day!