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I have asked the question before with no avail on another forum. It may seem simple but I have looked this information up before with not much success, that's certain. So despite the trivial appearance and the ease of which you will spit out the reply, please note this information didn't come easy for some. X__X;;

I would like to know what I could get here in the USA to match for the RB25DET for Fuel Filter and Oil filter, as well, what weight oil should I be using for my engine?

The mods are:

HKS super intake

FMIC

Greddy BOV

3 inch super dragger exaust with decat

Stock Boost on Stock Turbo

----

Thanks in advance.

Edited by AKW
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https://www.sau.com.au/forums/topic/228848-rb25det-little-odds-and-ends/
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anything synthetic around 10/40 will be fine

fuel filter is a bit harder, but basically they are all the same a generic one ould be fine if you couldnt find a nissan dealer ove there. I'm sure that a nissan dealer with spare parts catalogue could help you out. oil filter is the same. you want a z145a or equivalent

  • 2 weeks later...

Thanks a lot. So something like 10 weight 40? At the moment I have some 20 weight 50 laying around the house. I am sure that's not the stuff then right? Also, the VG30DETT from the 31 will work with the fuel / oil filter right?

Thanks a ton.

EDIT:

How many quarts does this RB25DET take with no mods, oil tanks or catches?

Edited by AKW

in the us your operating temps can be much lower than here in Australia. Its quite common on the BITOG forums based in the states to see new cars in the use use a 20wt oil. If your usage is only for street and short driving to the shops etc then I would be going a low wieght esp. in the cold sub zero temps. If its for track then you need something that will no thin out with high temps.

I qt is approx .9l. I use redline from the states which only comes in quarts.

Thanks a lot. So something like 10 weight 40? At the moment I have some 20 weight 50 laying around the house. I am sure that's not the stuff then right? Also, the VG30DETT from the 31 will work with the fuel / oil filter right?

Thanks a ton.

EDIT:

How many quarts does this RB25DET take with no mods, oil tanks or catches?

The "W" doesn't mean "weight", it means "winter", and indicates that the oil will pour below 0C (32F). A 0W40 / 5W40 / 10W40 is likely to be your best bet. A 20W50 is too thick for startups (the 20 represents ability to provide lubrication from cold start).

For oil filters, etc, try something for the 300ZX.

FYI there are 3.79 litres in a US gallon.

I see. Winter then. But some people think it is cold as shit here or something. It isn't. Currently outside it is 96*F and it is like 40% humidity or some shit. QUITE HOT. It gets to around 20*F in the winter here which is a long shot off, it is still summer.

So you are telling me my absolute best bet is to use a 10W40 where I live? Because I don't want to keep changing around on this shit.

And that 4.3 litres is 4.5 quarts of oil. 4 and a half bottles of oil go into the RB25? Damn son... lol

Edited by AKW

I've run 0W45 and 10W50 in my R33, both went well. As said above, it's a matter of temperatures.

You say your temperature range is about 100°F down to 20°F. Which is like 37°C - -7°C. Compared to most parts of Australia, that's pretty cool. Here in Perth, Western Australia we're looking at a range of 45°C - 0°C which works out to be like 113-32°F. But in approximate terms, the temperatures are pretty close.

So as suggested above, go with something that has a light cold weight (small first number). 0W40 or 10W50 should be fine (or anything pretty close to that). Turbo cars can be a little fussy when it comes to engine oil, so it's best to spend a little extra and get it right the first time. WHile the 20W50 you have there may work, why not just spend the little bit extra and get the right stuff?

For the oil filter, I go with a Ryco Z145A and then fuel filter was Ryco Z200. I'm sure you'll ahve similar parts available at your local auto-store.

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