rb20det oil type?

[putang29]

Wrapping up my swap/rebuild and went to get oil. In the skyline manual it says that for all rb-series engines to use the 7.5w30 oil. Local stores have none, and west covina nissans ( thenismoshop.com) only have the 5w30 and 10w30 as an option for the skyline engine oils.

Just looking to hear from you guys and see what type your running and for how long w/o probs n such. Thanks.

[Joe]

doesnt matter. run 5 or 10 depending on your climate. the first number/letter in an oil rating stands for weather

5w and 10w mean how resistant to temp swings it is. really makes no difference for most people. the 2nd number (30) is the actual weight of the oil. thats what matters.

[S13_RB25]

doesnt matter. run 5 or 10 depending on your climate. the first number/letter in an oil rating stands for weather

5w and 10w mean how resistant to temp swings it is. really makes no difference for most people. the 2nd number (30) is the actual weight of the oil. thats what matters.

Since I'm in NJ in winter i would use something like 20W but in summer I would run with Synthetic oil, right?

I remember reading somewhere it said that 20W is better for colder weathers since its thin, it gets to the valvetrain better and causes less trouble starting in cold weather... is that true? But it also said that a multiviscosity oil like 10W-30 would provide best of both. SO which would be better to run a multiviscosity 10W-30 or switching it up as the weather changes??

[themadscientist]

I run 15W50 Mobil 1 in all the cars. My weather here is like the gulf coast though, adjust for your climate.

[Sil240]

Actually your supposed to use lighter oil in the winter so that it warms up quickly 10w-30 ----> 5w-30.

In the summer you would go to a thicker oil. 5w-30 ----> 10w-30

Synthetic or Conventional is your choice. But I use Synthetic in my RB. In my DD Altima I use regular.