What oil would you recommend???

[Crazyracer77]

i just bought a 89 240, im going to change the oil in it tomorrow, i was just wondering what you all thought would be the better oil ro run, it has 175xxx on it, runs really good, it has a slight oil leak, maybe from the front crake seal, the engine is bone stock, i was thinking about running 10 40 in it. im not sure, any suggestions would be apreciated

Thanks

[AmoebAssassin]

Mobil 1 or Royal Purple, 10w40 or 5w40 is what I use, a tad expensive but always makes my engine feel fresh.

Supposedly Castrol GTX is good but i dont have experience with it.

[240DRFT]

you probably wouldnt want to run synthetic, it'd cause more of a leak than what u already have

[Checkered-Member]

you probably wouldnt want to run synthetic, it'd cause more of a leak than what u already have

Not always, if you use a heavier weight it will actually prevent/stop leaks

I personally use Mobil 1 15W-50 but that’s because I live in cali and its always very hot

Crazyracer77

for summer go Mobil 1 15W-50 or 10W-40 for winter 5W-30 or 5W-40

[TheOne]

10W-40(or 30) should be good.

[Crazyracer77]

i guess ill try the mobil 1 10 40 and see how it works...

[sanioll]

I dont think Mobil 1 comes in 10w-40 weights.

i use mobil 1 0w-40, thanks to palmerwmd's advise, it is great.

[jmhalder]

well, nissan calls for 10w-30. so get your butt out to walmart and buy a jug of mobile-1 10w30

[PalmerWMD]

Go a bit thicker cuz syummer+ hih miless needs thciker oil by at least one notch.

SO 10w-30 recommended = 10w-40.

since you leak no sense usung expensive oil The <best> inexpensive oil for your applciation is Chevron Supreme 10w-40 .$1.50 /qt at walmart(or if not on budget Mobil1 0w-40)

Fred..

[240marcuSX]

i use castrol GTX and like it just fine.

[bruinbear714]

I recommend AMSOIL 20W-50. Best oil you can feed your car.

[kenversusryu]

actually, running synthetic on older engines (especially one that is leaking) may not be a great idea. Synthetics are slipperier than dino oil so they can run through rings and cause all sorts of leakage.

here is a good explanation of synthetic vs dino oil by a NASA engineer.http://forums.yellowworld.org/....html

Here is a good explanation on oil grades.http://my.prostreetonline.com/...id=18