Researching synthetic oils and see a descrepency  By  Deleted (Read 4,141 times)

howdy, i'm one who posts some opinions based on experience without too many facts or research to back it but here goes. what research i have seen indicates that one of the benefits of synthetics is that they don't lose their viscosity as quickly as conventionals. i have been using synthetic since 1975 which is probably as long as anyone here and have had great success. one camry i had picked up 2 mpg and when i sold it had 280,000 miles with no oil related problems. the only problem i may be having is my current car which has indications of reduced oil pressure but i think that mostly due to engine bearing problems as there is a knock in the engine since i bought it with 147,000 miles and it is currently 190,000. that may be indication that the synthetic has kept a damaged engine running for many more miles? i upped the viscosity by putting 15w40 in instead of 5w30 and that seemed to cure the low pressure problem.

anyway, in short , i do recommend synthetic which i use in ALL my vehicles including scooters.

lotsa miles and smiles to ya
ken

Just use synblend no worries then, thats what use in my tapout scoot and gonna put it in my t3 next oil change

I have used AMSOIL Full Synthetic Oils in all my scooters. one of which has over 30,000 miles on it and i would never switch to anything else. Works amazing!! especially since my engines are highly modified.

I've read an interesting article a few months ago by an oil engineer.
Synthetic oil in the stores, is basically 70% or so dino oil, with less than 30% true synthetic oil in.
True synthetic oil is not dug from the ground, and filtered, like dino oil, but created molecule by molecule. That process is much more expensive than the way regular dino oil is harvested.

The oil is like 99.9% pure, while dino or synthetic oil has some impurities in them.
And like said, the viscosity of synthetic oil is more consistent, regardless of temperature; while the viscosity of dino oil is variable depending on temperature.

I'd use synthetic from day one; depending on watercooled or air cooled go with 10W30, or 10W40, those are the most common engine oils

It all depends on a lot of factors. 10W40 would be your standard engine oil for hotter climates, and aircooled engines.
10W30 is better for colder climates, and watercooled engines.

From there change oil type on every oil change, and see/feel/experience how the scoot does.
For instance, I equip my 150cc with 15W40, because it's air cooled, and powerful enough for me anyway.
My 50cc runs a little rough on 10W30, and very smooth on 10W40. I found it runs even better when I mix 10W30 and 15W40.
But it all takes time, and finding out what suits your bike best.
That being said, you can't really go wrong with 10W40, unless you're with a watercooled scooter in Alaska or something.

On engine with oil filters or racing engines where you change the oil after every race synthetic makes sense however on a typical GY6 after you have run it a few minutes with nothing but a screen to filter the oil you have probably lost much of the protection you pay for with a synthetic. To actually get the long life synthetics are capable of you do need to use a high quality oil filter which simply does not exist on a standard GY6. You will still need a monthly oil change which at $20 per quart is going to cost you $240 a year for the synthetic oil while a case of 12 quarts of 10W40 will get it done for $200 less.

I use Amsoil motorcycle oil in my scooter however it has a full flow oil filter and is designed for synthetic motorcycle oil with a factory reccomended 6,250 mile oil change schedule.

I will put in Mobile i today. If I ruin the motor I guess ill buy the Yamaha