so 2 oil changes ago i used the 0-30 mobil one "gas saving" oil and had a quart left over, the last oil change i went back to what i've been using the regular 5-30 mobil 1 and have a quart of that left,... is it ok to mix the 2 ? so then i'll just need to buy 2 quarts?? and does it matter if i switch back to the 0-30 or should i stick with the 5-30??

 

just hit up your parts store to see if they can do a trade for the 5w30 with ya

 

ya but i bought each in the 5 quart jug thing... and im thinkin bout using the 0-30 again? i dunno if its on the label makin me think im saving gas but i have noticed a difference??

 

0W30 will be better for your engine.

It has better cold flowing properties, ideal for cold starts and winter. I see your from PA so it will definitely benefit your situation.

I use 0W20 for my xB year round. Excellent oil! Runs very quiet in the engine.

You can mix them, but it is better just to run one grade/brand at a time if possible. It won't hurt though.

But my vote is to go back to the 0W30 and stay with it!

 

alright cool! thanks...

 

never mix oil. vicosity for syn are differnt than regular oil. 0w30 sucks *****. i wouldn't use it. look how thin it is. you minus well just put water in your crankcase. as oil gets hot it gets thinner... just imagine what the oil will do on a hot summer day and you've been driving around all day....

 

Ignorance really is bliss. Why do people suggest to give opinions when their "facts" are really, really wrong?

FYI, the 0W30 you say is "too thin", did you know there is not a SINGLE engine oil out there that is THIN enough at startup to provide proper protection? How about the fact the 0W30 will be the SAME viscocity as a 10W30 at operating temp? BOTH will thin as they get hotter, but guess what, that 0W30 will offer better engine protection and flow better at startup and in cold temps.

Just wait until they release the -5W20/00W20 oils... You think 0W20 is water-like now?

Oh and by the way, that STILL won't be thin enough.

Also, go ahead and mix your oils. No computability issues. Weather you mix synthetic with conventional, or a blend with a conventional, it won't matter. I wouldn't suggest it all the time just due to additives and whatnot (using one oil is best for efficiency of the additive packages inside of it), but it won't hurt, especially if your doing short OCI's.

 

PWNED hahaha

 

^^^HAHAHA but yea mix them is fine, thats what synthetic blend is haha

 

Well said!

danny662boy - I would recommend sticking with the 0w oils over the 5w for many of the reasons Invertalon has stated.

 

Its weird I noticed a loss of power when using the 0w20 engine after about 4k rpms. I felt like maybe the 0w20 was hurting my engine... Went back to5w20 Royal Purple and its back to normal.

 

That makes no sense at all.

 

YEAH it does . . . the thinner oils get wiped off the bores easier at higher RPMS / Temps and provide less lubrication protection.

 

Problem with your logic is the oil is NOT thinner.



It is time to (again) dispel the notion that 0W20 (could just as easily be 0w30) oil is too thin when our manual calls for 10W30. A 0W30 is always the better choice, always. The 0W30 is not thinner. It is the same thickness as the 10W30 at operating temperatures. The difference is when you turn your engine off for the night. Both oils thicken over the evening and night. They both had a thickness, a viscosity of 10 when you got home and turned your engine off. That was the perfect thickness for engine operation.

As cooling occurs and you wake up ready to go back to work the next day the oils have gotten too thick for your engine to lubricate properly. It is 75 F outside this morning. One oil thickened to a viscosity of say 90. The other thickened to a viscosity of 40. Both are too thick in the morning at startup. But 40 is better than 90. Your engine wants the oil to have a thickness of 10 to work properly. You are better off starting with the viscosity of 40 than the honey-like oil with a viscosity of 90.

I repeat: More confusion occurs because people think in terms of the oil thinning when it gets hot. They think this thinning with heat is the problem with motor oil. It would be more correct to think that oil thickens when it cools to room temperature and THIS is the problem. In fact this is the problem.

Example:
Oil type... Thickness at 75 F...Thickness at 212 F

Straight 30........ 250......................10
10W-30............100......................10
0W-30..............40 .......................10

Straight 10........30....................... 6
Thanks goes out to Dr. Haas.

 

DANNY just put whatever your oil cap say what to put PERIOD.
urs an 05', I think is 5w30. 07 plus is 0w20 I think.
mines an 06' it says 5w30. so yea....

 

If you mix 1 quart of 0w30 with 5w30 all mobil1, what you get is 4w30 oil. the difference between 5w30 and 4w30 is practically insignificant. go ahead and mix them

 

No I was referring to the higher number of 20 - Royal is going to be a better lube but still a lot thinner than a 30 - is why I run 5-50 ! Revs like crazy even when cold and protects when really hot too.

 

Why would you use 5W50? You may actually be hurting your engine.

Running a thicker oil (5W50 instead of 5W30) in a modern car with tolerances as small as they are, you are at risk of DEPRIVING the engine of oil it needs to properly lubricate. What made you go with such a thick oil is beyond me... It's like you trying to drink through a straw a triple thick milkshake instead of whole milk. Same thing your engine is doing...

I am surprised how many people are so oblivious to the real facts

 

no this stuff is just that much better than a typical 50 weight oil - it is very thin but doesn't get any thinner at really high temps. Actually it is a 150,000 mile lube - not an oil, not from dino - actually a coloidal lubricant of Moly, Teflon and Graphite which does all the lubricating and not the liquid carrier - with this stuff you don't really need oil pressure to lubricate the engine just some flow. Good for 15 years or 150,000 miles without change it - only have to change the filter twice. So far I have 19,316 miles on it and only added a cup to bring it up to full after the first year and that was about a year ago - still full at about 2.5 years, will have had it a total of 3 years at the end of the month.
www.synlube.com

 

put whatever you like in your car... just my opinion.. if you got money to waste go for it. do remember your driving a fuel ecnomy vehicle not a race car. its just like these morons putting 92 octane in there vehicle that recommends 87... everyone is so caught up in the publicity hype that they are not sure what the hell they are doing anymore.. been in this buisness for over 7 years now. i love to see people waste there money while i save.. ohhh and by the way 5w20 and 0w20 has been out for about a 2 years now...