I just poured in 4 and a half liters of royal purple synthetic 10w40 into my car, since I had a box laying around. Im wandering whether or not this is ok for the motor or is too viscous.
Specifically, will my oil pressure suffer?
no, its alittle thicker oil, than 5w30 but that wont hurt anything. i always run 10w30 synthetic in my LD9's...
doesnt pay to use cheap oil.
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** Flat Broke Racing Inc.**
No it's fine, there is only one thing with running it though you will have to stay with synthetic unless you were running synthetic all the time anyways. I use 10w30 royal purple all the time and I like it.
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Brad Paauw wrote:No it's fine, there is only one thing with running it though you will have to stay with synthetic unless you were running synthetic all the time anyways. I use 10w30 royal purple all the time and I like it.
no you dont have to stay with synthetic, the whole "you cant mix" is bullshirt and has been proven, what do you thing a semi-synthetic oil is?
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** Flat Broke Racing Inc.**
k i hope you all know its 10W 40 not 10W30
10 W40 is usually used for diesels
actually 15W40 is used for diesels
my car takes 5w-40

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So all in favor of 10w40...hail to the king lol jks. Let me know
the 40 weight oil may be too thick, the motor does have some close tolerances, i use 5w30 Mobil 1 Personally, and love it. Not sure if using Royal Purple would do much more for me.