I got a bottle of Castrol GTX 10W-30, but Im not sure if this sucker runs synthetic or not?
Any other reccomendations before I pour anything.
Synthetic would be a better choice indeed 
I was told for the RB engines that 10W30 is good for everyday/spirited driving, and 10W40 or higher if it’s mainly a track car etc…
Synthetic is recommended for the rb engine.
Nissan says to use 7.5w30 but alot of people believe that is two thin for the RB series
an example, Rick runs 20w60 and if he cant find 20w60 he will use 20w50. this is his car:
Japan is really hot in the summers and it doesnt really get below 45f where he is.
The RB runs really hot as you may have noticed already by taking a look at a rb after it has just been driven.
I drive a 95’ 240sx with the RB20DET swap by the way. So would it be allright if I uncap this bottle of 10W30, or would you guys just say stay clear and go get a bottle of something else. Cause I’m learning all this as I go.
I used 10W30 in my GTR. You’ll be fine with that oil for normal everyday driving.
I used 10W30 in my GTR. You’ll be fine with that oil for normal everyday driving.[/quote]
Thank you,
Bartek.
You could also try 0W40 Mobil 1, its made for german turbocharged vehicles and is the only 40 weight oil that is warranty approved. (Anything thicker than 30 weight is usually not warranty approved)
Ya I havent poured anything yet, and after talking with stealth(sam) from 780, he reccomened Mobil 1 aswell, so Im gonna read up on it tonight.
This may sound dumb, but its sunday and the part stores are closed so I can’t go check. But do CA18’s run the same oil filters as the K’s? Also what type of oil should I use?
they need an oil filter from an 88 nissan pulsar with the CA18DE
Anyone running a turbo engine…I would not recomend running anything that isn’t synthetic.
Synthetic oil will not break down as easily from the high heat of your turbo, but other kinds of oil might not resist the heat as well and this will damage your engine/turbo. For the extra couple bucks, it’s not worth risking it! And synthetic can last longer between oil changes, and will help re-condition your seals and reduce buildup within your engine. Something any 15year old engine can really use! The main reason somepeople don’t use full synthetic in older engines is because the old seals can’t keep the thin oil inside the engine and small amount of it leak out or get burnt off. If you have this problem I would recomend trying a semi-synthetic. But I wouldn’t recomend using a standard/cheap/non-synthetic motor oil on such a hot running engine.
Also, Higher viscosity numbers such as 20W-50 are thicker oils and better for higher temperatures. And lower numbers such as 0W-20 are thinner oils better for lower temperatures. If you get a thicker oil, it will really thin out when it gets hot, it doesn’t stay thick when your engine is running. And if you run a thinner oil in the heat of summer, it will aslo thin out when the engine heats up and may not do a good enough job of lubricating and leaving a film on all moving parts. That is why people often use a thicker oil inthe summer and a thinner oil in the winter.
Hope that answers some questions!