Is mixing 5w30 with 10w30 ok to do? it's all synthetic mobile1...thanks

 

i dont c a problem... wouldnt it just make like 7w30?
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Seems like it doesnt matter

 

^^ 7w30. 15w60 perhaps.....

 

Thats funny^^^

 

shud be fine.........i guess.

 

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Woudn't the 5w-30 oil layer on top of the 10w-30 at cold temps?

 

Those oils are so close to the same thing it won't matter.

 

thanks dudes

 

Just curious, did you switch to 10 30? I remember someone telling me for higher milage to use 10 30... I now have 160k and I'm still using dino, but on the next oil change will switch to mobil 1 synthetic... Should I get 5 30 or 10 30?

 

It wont matter once the car is at operating temp. I'd say 5-30 for the winter 10-30 for the summer.

 

exactly! you don't want to use 10-30 in NH winters.

 

I just always use 5 30 cause it is not as thick.

I have always been warned on switching to synthetic to not do it because if you have a lot of miles on your car there are typically more cracks in line and whatnot so you would leak a lot of oil. but i dont know how true that is so dont quote me on that.

 

I run 20 50 woo for me.

 

Mixing oils will damage and breakdown the oil chemicals and From what I have heard and read on some oil bottles and some manuals,If you mix up oil you can increase your chances of damaging your engine.

 

we run 10w 40 in the winter works just fine for us

 

Well i know mobil 1 has a high mileage syntehic oil, i havent looked into it but i figured it was more or less a marketing gimmick. So with 160k what is recomended, stick with dino walmart oil or go to syntetic (regular or high mileage)

Why worry about engine sludge?

 

walmart uses Pennzoil, we had a old Ford and Pennzoil was that cars worse enemy, dont use that **** save Urself alot of headaches

 

is there a benefit of mobil 1 compared to gtx?

 

no not really, they are both about equal till U get in to synthetics, mobil 1 synethetic is better than castrol.

 

And royal purple is the best of all. Thats all i run .

 

I dont think royal purple is really worth it, tryed it once worked great but its too expensive

 

Not that much more than mobile one. Plus i run all royal purple. Gear oil, water wetter and engine oil.