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Problems with new brand of oil?

JimX

By JimX,
in General Maintenance

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Steve Grand Master

Steve

Posted
Posted

found out that Nismo use Motul 300 15W/50 synth - $75 for 4L from autobarn

anybody running this?

got recommended to use Omega 15W/55 - but that was by a japanese D1 driver and mechanic - and the stuff isnt available here, and aparently its bloody expensive even in Japan

Bobjones Mentor

Bobjones

Posted
Posted
So should i be doing an oil flush every oil change? I use castrol formula R 5-30w and change every 5k with filter.

I have heard that the Castrol R is reasonable and a big improvement on previous oils.

As for the flush, it should be done every so often, you can usually tell when you need to do a flush.

If you change your oil and filter after letting it almost completely drain (there will obviously be some remnants in the oil system) and you put in new oil and less than 100kms and you pull the dipstick and its dirty...then you need to flush.

I have also found Castrol oils to be crap especially in relation to turbo engines...maybe its the running through the turbo that breaks them down, but on NA cars I have never had a problem.

I now run Motul 4100 turbolight and previously ALWAYS ran Mobil 1, but still needed to flush the system twice after 15,000. I think I must have just got a bad batch of mobil 1...but I will now stick to the motul, always used it in my bikes so I have a basis to go by, and after 2,000km it is still nice and clean...

51jay Mentor

51jay

Posted
Posted

flush is not needed every oil change...just remember to drain the oil while it is still reasonably hot, it will drain much quicker taking more rubbish with it also will drain more completely.

I don't like Castrol for a turbo either,, Have been using Shell Ultra full synthetic. Thinking about changing to Motul

JGB33 Collaborator

JGB33

Posted
Posted

Well guys i have used shell ultra fully synthetic in my 32 gtst when i had it and in my 33gtst

when i had that and now i have a 33gtr v-spec and still use the shell ultra and its kept

my engines running great. Alwasy changed it every 4-5000km with a new filter.One thing

i have noticed with the shell ultra is that even when its time to do the oil change,the shell

still looks very clean.I have a friend that runs the shell ultra in his porche gt3 and he said him and his other porche mates in there club only use the shell ultra.I know that porche and ferrari recomend shell.Anyway that works for me.

JGB33 Collaborator

JGB33

Posted
Posted

Enrico You will be able to change no worrys at all.A good thing to do when changing oils is change it once with the new oil and filter, then do another change again at about 1000km, then just about all of the old stuff will be gone. One other thing is, that a mate of mine was

running castrol in his 33gtst and every 5000km when he changed it, the oil was black and had no body left in it.When he changed to the shell ultra ,i've seen the oil that was dumped out at 5000km this time and it was still so clean. HE WAS SOLD!!!!!!!!!

benm Grand Master

benm

Posted
Posted

Speaking of oil filters, I noticed this product at 'Jamboree' on Saturday....

http://www.mrtrally.com.au/performance/filtermag.htm

I guess its pretty logical but comes at a price (meaning it could actually make a difference, or they are just cashing in on something that hasn't been done before).

kingscorp Rising Star

kingscorp

Posted
Posted

Hi Guy's

If you change your oil often you shouldn't need to flush the engine.

I work as a sales rep for one of those oil companys you have mentioned and let me tell you that 5000kms in a road car on any good synthetic oil is nothing. If you have to flush your engine after 5000kms somthing is wrong.

We supply many truck fleets that run up around 70000kms between oil changes, and their dirty diesels, even these guys dont flush their engines between drains.

ASHLY

JimX Grand Master

JimX

Posted
  • Author
Posted
Hi Guy's

If you change your oil often you shouldn't need to flush the engine.

I work as a sales rep for one of those oil companys you have mentioned and let me tell you that 5000kms in a road car on any good synthetic oil is nothing. If you have to flush your engine after 5000kms somthing is wrong.  

We supply many truck fleets that run up around 70000kms between oil changes, and their dirty diesels, even these guys dont flush their engines between drains.

ASHLY

The thing is, my car did 80 000km with god knows what oil and probably without any flushing. So now that it's all clean, I won't be flushing it for quite some time, if ever again. Good quality oil should contain enough detergents to keep the insides clean and I plan on using just those detergents from now on to keep it clean until I see something wrong.

For anyone that thinks that just because an oil is "cleaner" after an oil change, you should probably revise that thought. Oil is supposed to turn black as it absorbs soot. If the oil stays clean, that means the soot is going elsewhere. And I don't remember the last time Ferrari produced a turbo car. Why would you go off a recommendation for a non-turbo car for a turbo Skyline?

Also, I have never read a non-biased review which said that Shell Helix was anything other than an average oil. Perhaps a bit above average and almost certainly better than Castrol, but really nothing special compared to the better synths. Don't judge the oil quality by its colour after changing, is all I'm saying.

Forget all the marketing hype and just do some research outside the advertising. I didn't buy the Fuchs oil because of marketing or advertising, I bought it because I heard from a few sources that it was a good quality oil which many other companies buy their synthetic base from, and that was good enough for me. If it turns out to be dodgy then I'll have to research more and find out which companies use Fuchs, and also rule them out. But I'm pretty confident that it's above average in quality.

There are several reviews on the web about oil. Probably the most common comparison is comparing Amsoil to Mobil 1, because Mobil 1 is meant to be the premium synthetic oil (and almost the same as Fuchs synth). Everyone should probably be running Amsoil if they could afford it, but all of the comparisons are slightly biased in favour of Amsoil. Mobil even refute some of the tests that Amsoil use.

I personally think there is not that much of a difference between Mobil and Amsoil after reading up on both of them, provided you do regular changes and don't subject your engine to extreme temperatures. I'd rather save a few bucks between changes and be able to just pick a new bottle from any spares shop, than have to send away for it every time. In the long run I doubt I'll see any difference.

kingscorp Rising Star

kingscorp

Posted
Posted

well, it makes sense to flush it after 80000 kms on the same oil.

i dont want to get involved in a comparison between different oil companys (for obvious reasons). But i can get technical or general information on different Fuchs lubricants if you want.

ASHLY

JGB33 Collaborator

JGB33

Posted
Posted

JimX

I realize that oil is spose to get black but there is a difference to oil getting dark to an oil that looks filthy black.The other thing was i wasn't saying that shell ultra was the best of the best,all i was saying is that the shell ultra has kept my cars very clean.The whole reason i have stayed with the shell ultra is that a couple of years ago when my r32 motor was stripped to do some mods the inside of the motor was very clean.So i kept useing it.

One other thing is i know Ferrari dont run turbos but if they are running it in a $200000 plus car it cant be to bad.Also i have mates running it in there turbo porche and it does fine for them.

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