Best Oil To Use
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WooHaa
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Here was my simple evaluation. I used to use Castrol RS (racing Synthetic) before, & every morning when I start the car, you would here the lifters make a bit of a noise as the oil hadn't reached the top of the engine yet & would quiten down after 5 secs. Since changing to Mobile1 I don't get that sound at all.
She is quite from startup especially on the cold winter mornings.
She is quite from startup especially on the cold winter mornings.
Steer From the Rear !!
That hapened with my sx before I used Mobil 1. Now I realize that.
Mobil 1 is awsome oil, BUT it is a bit thin for SA's heat, you can get 20w-50 in the US but i have only seen 10w** And lower here which is a little thin for out climate 
You can only use a 10w-40 or less if it has turbo specification on the bottle, 5w-30 is the lowest i would recomend going even if its turbo approved
All good parts shops should stock softec,
http://www.castrol.com/castrol/productd ... Id=7000676
TXT SOFTEC LL01
Synthetic technology formulated for modern petrol and diesel engines with or without turbochargers and intercoolers.
Key Benefits
Castrol TXT Softec LL01 is also suitable for vehicles fitted with catalysts and is suitable for leaded or unleaded petrol. Castrol TXT Softec has been formulated to meet the requirements of the latest Hi-Tech engines designs with preferences towards lower viscosities, fuel saving contributions, plus reduction in both cold start wear and hydraulic lifter noise.
Castrol TXT Softec outperforms heavier viscosities with respect to volatility and inlet manifold wetting in harsh South African and Namibian test conditions where oil sump temperatures exceeded 150°C operating temperatures. Oil consumption due to volatility is also reduced:
Proven South African performance
Synthetic engineering for assured protection and performance reserves
Superb cold start performance
SAE 5W/30 viscosity rating
Balance of economy and power
Extra anti-wear performance
Turbocharger proven
Specifications
API SJ/CF4
ACEA A3 / B3 / B4
BMW LLO1
You can only use a 10w-40 or less if it has turbo specification on the bottle, 5w-30 is the lowest i would recomend going even if its turbo approved
All good parts shops should stock softec,
http://www.castrol.com/castrol/productd ... Id=7000676
TXT SOFTEC LL01
Synthetic technology formulated for modern petrol and diesel engines with or without turbochargers and intercoolers.
Key Benefits
Castrol TXT Softec LL01 is also suitable for vehicles fitted with catalysts and is suitable for leaded or unleaded petrol. Castrol TXT Softec has been formulated to meet the requirements of the latest Hi-Tech engines designs with preferences towards lower viscosities, fuel saving contributions, plus reduction in both cold start wear and hydraulic lifter noise.
Castrol TXT Softec outperforms heavier viscosities with respect to volatility and inlet manifold wetting in harsh South African and Namibian test conditions where oil sump temperatures exceeded 150°C operating temperatures. Oil consumption due to volatility is also reduced:
Proven South African performance
Synthetic engineering for assured protection and performance reserves
Superb cold start performance
SAE 5W/30 viscosity rating
Balance of economy and power
Extra anti-wear performance
Turbocharger proven
Specifications
API SJ/CF4
ACEA A3 / B3 / B4
BMW LLO1
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WooHaa
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i disagree with that statement Rezlo, as there are two viscosities, regarding the temperatures. The lower the viscosity rating during cold is better & higher the viscosity during running temperature the better.
So Mobile1 has 0w, which means it;s the thinnnest during cold start up, remember the oil doesn't get any thinner then this. While it's going into running temperature, then the 40w takes care of the higher temp.
if you read the manual, it doesn't recommend 30w as this doesn't cater for the higgher temp. or if you're using it it says you can't run the car hard for long periods.
This is what the manual says, I'm sure softec is brilliant, but this is what I have read in the nissan manual.
Also, because we run in a hotter environment, then the second viscosity rating should be taken, so anything with 40w & higher is better suitable.
So Mobile1 has 0w, which means it;s the thinnnest during cold start up, remember the oil doesn't get any thinner then this. While it's going into running temperature, then the 40w takes care of the higher temp.
if you read the manual, it doesn't recommend 30w as this doesn't cater for the higgher temp. or if you're using it it says you can't run the car hard for long periods.
This is what the manual says, I'm sure softec is brilliant, but this is what I have read in the nissan manual.
Also, because we run in a hotter environment, then the second viscosity rating should be taken, so anything with 40w & higher is better suitable.
Steer From the Rear !!
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ChemCool
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One thing is for sure - I am learning man. I sit here in front of computer with Mobil 1 container in one hand. Was slighly worried about the 0w-40, but then WooHaa's explanation put me at ease again. I notice the abbreviations and list at the bottom of rezlo''s post. I see Mobil 1 states all the same and more like VW, Porche,Opel,Merc's etc.
While you are correct in the temprature ranges, you must also realise that 0W is design for -40 start up,
if you compare a 5W-30 without a turbo rating and one with a turbo rating you will see a huge difference. See in a mormal motor it will give you 30 when hot, but in a turbo motor which is hotter it will drop.
a 30 turbo aproved oil will run closer to 40 if not 45 when used in a cooler NA motor.
Another thing to remember is that all the old nissan service manuals do not cater for todays hi-tech oils available.
the Softec being a 5w-30 is approved for near all mass produced turbo engines specific for South African climates.
Another thing ALOT of people dont realise is that ball bearing turbo's can not use thick oil, they have to run on ligther weight oils with the turbo rating or you stuff its bearings up, especialy he ceramic ones.
And as it says in the S13/S14 FSM on page 20, 5w-30 or 10w-30 i prerable regardless of driving conditions.
if you compare a 5W-30 without a turbo rating and one with a turbo rating you will see a huge difference. See in a mormal motor it will give you 30 when hot, but in a turbo motor which is hotter it will drop.
a 30 turbo aproved oil will run closer to 40 if not 45 when used in a cooler NA motor.
Another thing to remember is that all the old nissan service manuals do not cater for todays hi-tech oils available.
the Softec being a 5w-30 is approved for near all mass produced turbo engines specific for South African climates.
Another thing ALOT of people dont realise is that ball bearing turbo's can not use thick oil, they have to run on ligther weight oils with the turbo rating or you stuff its bearings up, especialy he ceramic ones.
And as it says in the S13/S14 FSM on page 20, 5w-30 or 10w-30 i prerable regardless of driving conditions.
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WooHaa
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like you said, freddie, I'm not getting into an argument, I'm learning as well. & there is an awesome exchange if idea's and knowledge, which makes this forum brilliant.
I called Castrol one day as I couldn't understand the difference between there Castrol RS 10w-60 & edge 10w-60.
the reason I also called was because edge is R200 & sumthing & RS is R400 & sumthing
The technician explained the difference to me, but there is so much more than just meeting apci standards. This guy explained some stuff I too still don't understand. He basically told me, it's not just the running temp, but also what loads, do to the oil & how long they can withstand it before they loose viscosity & what happens to oil, that is hot, then cools & then get's hot again.
Easiest thing he told me that we all will understand, is you get what you paid for.
I called Castrol one day as I couldn't understand the difference between there Castrol RS 10w-60 & edge 10w-60.
the reason I also called was because edge is R200 & sumthing & RS is R400 & sumthing
The technician explained the difference to me, but there is so much more than just meeting apci standards. This guy explained some stuff I too still don't understand. He basically told me, it's not just the running temp, but also what loads, do to the oil & how long they can withstand it before they loose viscosity & what happens to oil, that is hot, then cools & then get's hot again.
Easiest thing he told me that we all will understand, is you get what you paid for.
Steer From the Rear !!
I suppose we all have our own opinions and are learning, I can say, previosly using oil when I felt the dipstic with oil on I could feel the oil feeling very thin and not as "slippery", I the tried edge sport an it felt better, when I feel the dipstic it still feels thickish and very "slippery", that tells me that it holds it clamed viscosity well, as for the noisy lifters in the morning, it's still there, but I won't buy mobil 1 just to make that quiet, it is moore importent to me that on high temp and work load the oil does it's job.
uhmmmmm
ok I'm confused. I've just come from volvo, picked my dads car up from service which is a 2.0 litre turbo.
so I asked the guys here and they use castrol magnatec 10w40 through their whole range of cars.
this is what I'm using.
so I asked the guys here and they use castrol magnatec 10w40 through their whole range of cars.
this is what I'm using.
