TrancEpimp

iTrader: (10)

0w-30 mobile 1 - improved my mpg and car feels lighter

Lexus@17

iTrader: (3)

hmmm so today i just got my oil change
i used the mobile 1 5w30 like the dealership and most people use.
but can some one please explain to me the different between 10w 5w and 0w also with the 20 and 30 >.<
sorry i try asking the dealership they didnt even explain it to me -__-

nmpeter

iTrader: (15)

5W30 Mobile 1 full synthetic.

lobuxracer

iTrader: (2)

Read this. You'll know more about oil than many ASE certified mechanics when you're done.

Koz

0w-20, 5w-20, 0w-30, 5w-30, 10w-30, all will provide approx the same protection against thermal breakdown, being that they all have the 30 weight rating. The difference is in the pour rate (ability to flow when cold). The lower the "w" (Winter) rating/viscosity the better flow at start up. The best viscosity to use is the lowest viscosity that falls within the OEM recommended range. Petro based oil is affected more by the "w" rating, that's why you see the graph in the owner's manual with several different viscosities. In reality, a 0w-30 quality synthetic oil will cover that whole range in the owner's manual.

The OEM filter has proven to still provide safe protection past 10K miles. My last UOA (Used oil analysis) had 12K miles on the OEM filter and it was fine. I'm not sure where the myth started that an oil filter only lasts for the OEM recommend change interval but there is no need to change it that often. Years ago the OEM recommended the filter only needed to be changed every OTHER oil change. There is no reason to guess at how long the oil or filter will last, you simply can send a sample of the oil at 8K miles and you know for sure how long you can safely use the oil and filter. The factory fill (petroleum based oil with break-in debris) is still safe after 10K miles.

Koz

alan003

hey koz,

I know to be sure I have to get my own UOA for me to know if I can change my oil intervals at 10k. But, for just discussion... do climate and driving style (mostly freeway vs. short trips) play a major factor in UOA? I live in socal and I drive mostly freeways.


Alan

Lexus@17

iTrader: (3)

lmfao jeechz thats sooo long ><

Koz

Absolutely!

Warm weather and mostly highway is ideal (Especially if you reach operating temp every time you use the car). Cold weather, stop-n-go and short trips are bad (Especially if you don't reach operating temp).

Luckily Toyota engines are known to be gentle on motor oil and the IS engines have proven to be gentle. One of our members left the break-in oil (OEM Dino) for the first 10K miles and a UOA proved it was still providing safe protection. This says a lot because that was conventional oil with the OEM filter.

I feel that the oil is the life blood of any engine and because these engines are so gentle on the oil it makes good sense to take advantage of being able to safely extend the oil change intervals (OCI). I use Amoil 0w-30, which is known to be one of the best group 4 pure synthetics made. It is also known to PROBIBLY be the best oil to use for extended OCI. I'm using this same oil in my V8 4Runner with a bypass system that has over 40K miles on it (5 years). That is over 40K miles on the same oil (Nano filter change once a year). I've had a UOA done before each filter change and the reports show on end in sight.

Bypass system located between the front bumper and radiator (Just reach under the bumper and change the filter);

Koz

IS-SV

btw - What's a bypass system? ^^^

Koz

Check it out;

http://www.amsoil.com/storefront/bf.aspx

Koz

gnode

I often wonder if Amsoil is a MLM.

lobuxracer

iTrader: (2)

Why would you wonder? It is. So what? It doesn't make the product bad at all.