Oils for Skylines

[akira]

Need to know which oil is best for my skyline. What does 5W50/ 15W 50 etc mean.?

Which brands give the best protection?

any advice appreciated as I will be doing oil changes myself from now on.

[blind_elk]

The first number is the COLD viscosity, the second is the HOT viscosity. The oils have additives to change the viscosity with changing temperature.

Its debatable how low you need the cold viscosity. a low number means that the oil will be circulated quickly from a cold startup. But a higher number (thicker when cold) is likely to hang around better, so not need the ability to quickly circulate when cold.

I think the quick circulation factor usually wins out.

A 5 is really the lowest you [b:adb267e0b1]need[/b:adb267e0b1] to go in Oz, unless you are up at Perisher or something (then you might need a -5).

Probably what's more important is the API specification (like SG/CF or something like that) I think the latest is something like SJ/CF (anyone?), and indicates the level of protection that the oil gives. The 'no brand' oils (KMart, etc) are often only SG or SH API specs, so steer clear of them.

[Gradenko]

Yeah, SJ/CF is the current standard. SJ is expected to increase to SK in the future but the diesel rating, CF is expected to stay the same for some time.

For more info:

http://www.salemboysauto.com/faqs/faq-29.htm

Recently, I've been hunting around to find the reconmended oil type for Skylines. Mobil Japan suggests 5w50 or 0w40 for all 2.5L-3.0L multicam turbo engines. (I think... I can't read Japanese ). Heres a pic for reference:

http://www.mobil.co.jp/club_mobil_1/lineup/lineup.html

0w40 is probably only meant for the colder parts of Japan, but Mobil Australia also suggests 0w40 for the R32 GTR (the only Skyline on their list as it was locally delivered).

Mobil Aus GTR sheet:

http://www.datateck.com.au/lube/mobil_au/d...ke=36&Model=820

I'm going to hazard a guess and say, for all turbo twincam RB's, 0w40 during winter (in cold areas) and 5w50 otherwise.

[AndyMac]

Royal Purple all the way...5w-50w (i think)

I couldn't believe the performance difference

Or Redline if you can find it.

[red900ss]

I have been using the Mobil 1 0W40 for about a year now. Good stuff.

This is not the same Mobil 1 that K-Mart etc sell. It's a grade above that. You may have to order it in from a Mobil supplier.

It's about $16/litre but it's worth it.

When I get the Mobil sock number I'll post it up.

Most of the Nissan dealers sell the oil filters for about $7-$8. Better than the Repco price (about $12).

[Gradenko]

I didn't realize Mobil1 0w/40 was that expensive. Royal Purple 5w/x is also around $16 a quart (~1 litre).

Oil filters... I always use genuine parts instead of the Ryco equivalent. When it comes down to it, Nissan is interested in making their engines last, while Ryco is interested in profit. Plus, the fact that genuine oil filters are cheaper doesn't hurt

For reference in Perth, Royal Purple is sold by Lance Distributors (9458 2239) and Red Line is distributed by Red Line Oils (9446 4455).

[d0p3y]

Hey --- Isn't there a thread on oils in the Up-Keep section?

Ryan

[adam 32]

redline in perth is also distributed by tim at west racing

[JiMb0]

I'm going to have to give this Royal Purple stuff a go me thinks. Is the difference really as noticable as you say ?

[Guest MRE]

"Royal Purple" sounds like some Hydro from Amsterdam

Always been a Shell Helix man myself.

[JiMb0]

Hahaha, I'll go for some of that too MRE :Pimp: I'm still a Mobil 1 man ...