Any improvement with oils??

[Guest RedLineGTR]

Has anyone noticed any differences with the oils they run in thier engine? Is the engine more quiet on idle ? Has anyone noticed any black smoke because of thinner oils? Any problems with thicker oils ?

I know there are topics on what oils people use, but i would like to know if there is any diff in the note of the engine, is it any quieter etc, for any particular oil.

If you think this post is a waste of time Admin please delete it at your own free will.

Thanks Rob

[rb25]

Just recently i changed to Mobil 1 for the engine, Reline Oils for the gearbox and diff. The running temp of the car has dropped about 6degrees, idles a bit quieter, revs alot smoother and changes gear heaps better - no crunches. I'm happy i decided to switch to synth.

[Guest RedLineGTR]

Thanks For your feedback What rating what the Mobil 1 Oil Rated at next oil change i'm gonna try mobil 1. Something Different. Still Looking for other opinions experiences.

[red17]

Mine runs soooo much sweeter with Mobil 1 in the engine. Im also running Mobil 1 synth in the gearbox and diff and I couldnt be happier with the performance of them.

Interesting to note that Mobil now make a Synthetic oil and a Tri-Synthetic oil. Now im not sure about the exact differences but im told the 10W/30 and 0W/40 come in Tri-Synthetic, while the 5W/50 is just synthetic. (Their website at the moment says only the 0W/40 is Tri, however ive seen a barcoded Mobil barrel of 10W/30 with Trisynthetic printed on the side, so it must exist)

I run the 10W/30 which I buy from a tuning shop, ive never seen it on the shelf.

Red17

[unwritten law]

just did my first oil change

using Motul 10w40 turbolight, seems alright

dont really wanna run thin oil in an older engine (RB20 about 10 yrs old)

[skylineakt]

i had Castrol R 0-60w in my Skyline at one stage and it was very shakey at idle. Even sets my alarm off when the turbo timer is running. Now I'm using Castrol R 5-30W and that runs pretty good.

[rb20-calais]

i also run motul turbolight in my rb20 i am happy with it

evan

[carlo]

I run motul 300v at the moment, its a good oil and I notice the temprature of the engine is ever so slightly lower. No complaints with that stuff, its very nice and the engine warms up alot faster with it.

[red17]

Unwritten law

How many k's you done in your skyline?

Red17

[ScarifieR]

my 93 r32 has done 70 thou

the importer gets services done on his cars at 2 places repco and a local mechanic

the local mechanic uses mobil 1 fully synth or mobil S semi in skylines

but ****in repco puts in valvoline xld!~@#!@

my car has had XLD in it for 4 thou k's before i got it which doesnt make me happy

its a 20-50 shit oil i ran it in my old astra and then switched to gtx3 and even knew the difference

i just dumped the oil and it was black and shitty and then ran about 3/4 a ltr of pennzoil gt performance semi synth 10-40 to wash some of the shit oil out then filled it up with the pennz

and the car runs much smoother its not funny

but im still not happy cause the engine will still have some crap oil in it but it should be ok till i dump the oil next time (only another 4 thou k's)

then ill put prolly mobil 1 semi synth which is basically the same as the gt performance pennz

i have to change every 3 months or 5 thou cause of my aswn warranty so going mobil 1 wouldnt really make a diff and it would be soo much more expensive

[red17]

Yeah tell me about it, Mobil1 10W/30 Tri Synthetic is $18 a litre. I get mates rates, but the price is still well into the teens

I knew there was a reason im catching the bus to work now.

Red17

[gtrken]

  Quote

Originally posted by ScarifieR

my 93 r32 has done 70 thou

the importer gets services done on his cars at 2 places repco and a local mechanic

the local mechanic uses mobil 1 fully synth or mobil S semi in skylines

but ****in repco puts in valvoline xld!~@#!@

my car has had XLD in it for 4 thou k's before i got it which doesnt make me happy

its a 20-50 shit oil i ran it in my old astra and then switched to gtx3 and even knew the difference

i just dumped the oil and it was black and shitty and then ran about 3/4 a ltr of pennzoil gt performance semi synth 10-40 to wash some of the shit oil out then filled it up with the pennz

and the car runs much smoother its not funny

but im still not happy cause the engine will still have some crap oil in it but it should be ok till i dump the oil next time (only another 4 thou k's)

then ill put prolly mobil 1 semi synth which is basically the same as the  gt performance pennz

i have to change every 3 months or 5 thou cause of my aswn warranty so going mobil 1 wouldnt really make a diff and it would be soo much more expensive

Valvoline is a good oil.

GTX is crap and if you don't believe me , look inside the rocker cover of an engine that's run it for a while.

The oil is supposed to get dirty , shows it is capturing the contaminents in the engine and holding it in the oil.

I use Mobil 1 and change it every 5K or after a hard motorsport event. Cheapest engine insurance you are gonna get...

Cheers

Ken

[Busky2k]

Mobil 0W-40 Trisynth is one of the best oils you can get. Has the ideal viscosity for both cold and hot. The turbo spooled up alot easier with M1 than the GTX3 shit that my car came with when i bought it.. and was quieter at idle too. I get it for $13/L at my local mobil distributor. Its factory fill in all Porsche etc. Cant go wrong there man!!

[JimX]

Busky2k, where can I get Mobil 0W-40 Trisynth from for $13/litre? At that price I'll give it a go.

I've been using Castrol Formula R 10W-60 for the last 2 changes, but this time around I'm going to go back to the 5W-30 I used on my first oil change. I didn't know much about oil viscosities until only recently.

For the 10W-60, Castrol's site said it was for (among other things) "highly stressed competition engines", whereas the 5W-30 was for "high revving 4cyl engines". The first time I bought the 5W-30 I just went off the shop guy's recommendation (he was unbiased, he sold me the cheaper oil!) but for the next change I read up on the synthetic oils on Castrol's site and felt that my car would better suit the "highly stressed competition engines" description

But on reflection, I now think it suits "high revving 4cyl engine" better, because each piston in the Skyline is actually smaller than that in an SR20 engine. So it's actually more of a 4 cylinder engine than a 4 cylinder engine, as far as the oil should be concerned!

I believe that the factory spec for Skyline's oil is 7.5W-30, so 5W-30 isn't far off from that. Keep in mind that this is for a new engine though, not a worn one. I will see how much oil gets used with the 5W-30, and if it's a significant amount, switch back to the 10W-60 or try 0W-40.

Not having any problems with the 10W-60 at present but I feel I am wasting power forcing the pistons through the higher viscosity oil. Hopefully my power and economy will improve with the thinner oil.

[Busky2k]

JimX, I get it at Motrex.

http://www.motrex.com.au/ (Athol Park)

10W-60 is wayyy to thick for a skyline. Maybe good for a smoke blowing Sigma. I reckon 40wt is excellent for a skyline engine with some ks on it, and also good for our hot summers. 30wt is getting on the thin side, its only good for friction reduction hence the "high revving 4 cyls". The film strength of a 30wt is not good enough for a turbo car driven hard. 50wt+ is too thick and your oil/bearings will run unneccesaily hotter in anything but a track/race car. Newer RB/SR engines have tighter clearances than engines of old.

I wouldnt worry about the xxW rating so much, cos it doesnt get too cold during winter. 0W still being the most favourable, but I wouldnt go higher than 10W. As you can see, the Mobil 1 0W-40 has both bases covered, and meets some of the toughest OEM specs on the market such as MB 229.5 (Only 7 oils in the _world_ are MB 229.5 certified) so its definately safe to use for longer intervals (eg 10k+) It also is very good in terms of friction reduction.

On top of that, M1 is a true Grp IV synthetic, unlike Castrol which only uses GrpIII oil bases which is basically just ultra refined petroluem oil (cheaper to make, but its not reflected in the RRP). So why pay more?

There is Motul 300V and Redline, which are even better again, but I think its gettin a bit expensive for a street car... M1 will do u just fine! I dont claim to be an oil expert, just stating what I know, but if any more questions feel free to ask..

[skylineakt]

Hey JimX

I found that the Castrol R 10-60 made my car very rough at idle. Stick with the 5-30W that's what I have being using and that's what my mechanic uses too. It's much smoother and now doesn't set my alarm off when idleing with turbo timer running.

[JimX]

Yeah I'm definitely going for something thinner this time round. The car doesn't use a drop of oil so I'm pretty sure thin oil will be fine. At least I know I can fall back on the 10W-60 once the rings start to get a bit worn, hopefully for not another 100 000km!

Only 300km to go before service is due

[Nismo_R33]

I like Shell 5w-40. Fully-synthetic and not too high price... around $40-45 for 5L only

[Nismo_R33]

I used to get 0w-40 Mobil 1 for my SR20DE pulsar... Get it from porshe dealer service department, about $12/L, but rise to about $15/L one year ago... Then I use shell 5w-40 because of the cheaper price.