[hasher]

Can Diesel Truck using fully synthetic engine oil? How come some service
advisor said can, some said cannot one? Can some expert confirm kah.

Thank you
Hasher

[911]

It is the viscosity count. Not the type of oil.

[jaylee]

As long as you are using engine oil specifically designed for diesel
engines i.e. having the necessary additives and the correct BN range, it
does not matter whether the oil is mineral, semi-synth or full synth. The
choice is up to you to make.

If you are thinking of using synthetic oil for petrol engine cars in diesel
trucks then the answer is no.

[Tourist]

It is the viscosity count. Not the type of oil.
================================================================
Plus the required quality grade. For example, API C*.

[hasher]

Hi Tourist,
So thicker or thinner to consider? Toyota only use CF 5W/40 fully
synthetic, can it last for 10,000km?

[911]

this can only tell by doing used oil analysis (UOA). It measure how much
abrasives (metal particles fr the engine)in the oil and the additives left.

Last time, I did for my 15W40 at 8k km. All pass, i think exceed 10k km no
problem. But not doing now coz expensive.

CF oil!Old spec already. I think this is petrol full syn that also can use
in diesel engine. I doubt this can last long with our dirty diesel.
Y not get diesel oil instead of petrol full syn?

[hasher]

CF? This is Toyota recomanded by their service station, since the truck
is still under warranty, do we have the option? or just service outside
and forget about warranty. yesterday service bill almost rm900. damn kaw
expensive.

[911]

read for urself what CF call for.

I believe common rail engine using direct injection, not indirect injection
like my old tech diesel engine.

So this is so call "recommendation".
As a owner better understand more abt automotive and judge by urself.

A business firm, profit is priority. They don't cash in ton of $$ to keep
inventory, they sell u what benefit them, not u and ur car.


care to elaborate what in the rm900 bill?
When is ur next service? Next 5k km?

[hasher]

Major 40K km service, change LTD slip diff oil, ATF, transsm oil, full
syn oil, brake fluid, oil filter, gasket, air filter, plug, coolant,.
Labour itself already rm246.96 liao. Yes, next service they said 5k, but
I will visit them at least 8k if not 10K.

[911]

my 40K km service cost:
Castrol LSD oil rm50 per 5L(can use 2 times)
Gearbox, differential oil 6 to 7 litre, total Rm70
Mobil engine oil less than rm100
air filter rm25
brake fluid, coolant, battery water still got plenty at home

labour cost rm25

total less than rm300
did change at neigbouring Ah Pek workshop with more than 25yrs work experience

U can hv this after warranty.

Paying more is part of the warranty program, I hv this too last time.