993 EFI- what engine oil?

Forum: 

fully synth, semi, mineral, bubbley,..... ok not the last one.
i know i need 10/40W 3.1ltrs as fitting a new oil filter. just not sure which oil type i need.
on my bike you do NOT put full synth as the clutch shares the same oil as engine, you get clutch slip if you do. BUT the Hijet is not a bike (sadly).

Fully Synthetic Always.

2004 Sirion 1300 4 Track. And I love it.
Don't like the new shape much.

Some may disagree, but I always use Fully Synthetic Oil.

5/30 I beleive is what Daihatsu say.
In the Hi Jet I beleive Super Oil is required to help with the lack of cooling which can be experienced with this model.

Some one on here will tell you for sure what Daihatsu say.

But I have personally only used Fully Synthetic Oil for 20 years and swear by it. You get what you pay for!

Lets see what others say.

Cheers, Bob F.

2003 Sirion Rally 4. And I love it.
Don't like the new shape Sirion much.Sorry.

5/30 I believe is what

5/30 I believe is what Daihatsu say.

>in my owners hand book all it shows is a chart with temperatures and various oil weights.
as the UK is generally cold (even in your summers) 10/40 was the one in the "temperature band".

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I agree Leopard !

2004 Sirion 1300 4 Track. And I love it.
Don't like the new shape much.

But I still think the 5 is important rather than the 10.
5 is slightly thinner and therefore will protect quicker in cold conditions, Even if it is not as cold as in your chart.
We got down to minus 15 this year.

You of course can always get a 5/40 Fully Synthetic.
You then have the best of both worlds.

This is what I use and have done for years.
Engine runs a sweet as a nut and I'm on my second Sirion.
Only changed the first Sirion (1300SL) as I was able to find a decent 1300 4 track.

Cheers, Bob F.

2003 Sirion Rally 4. And I love it.
Don't like the new shape Sirion much.Sorry.

We got down to minus 15 this

We got down to minus 15 this year.
>not where i live thank ****! lowest we saw was -5c. warmest i ever see is average 20, hottest 30. but TBH i'll be on my bike on those days.

thing is, i know what weight i want.. what i dont know is what type..
i know fully synth is expensive but you do get what you pay for.
semi is good enough in my books, and is what i put in my bike which i cherish more than the van.
i have no idea on mineral...

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A matter of choice

Which oil you choose is really down to your driving pattern and service intervals. Daihatsu recommend a 5w30 semi-synthetic on a service interval of 9k miles or 1 year for normal driving. This weight oil suits the British climate. The service interval mileage could be extended with the use of fully synthetic oil dependent on driving pattern. As the vast majority of engine wear occurs during the starting process, it is advisable to renew oil more frequently if your driving is mostly stop-start or short journeys.

From personal experience I have found that fully synthetic oil keeps an engine in pristine condition compared to alternatives. Cheaper mineral oil degrades quickly and precipitates sludge which accumulates where you don't want it to. This can be seen if you remove the rocker cover, (or camshaft cover) on an engine which has been run on cheaper oil. Sometimes the coating of sludge is baked solid and has to be scraped off. Synthetic oils prevent the sludge from forming by holding it in suspension until the next oil change.

You really do only get what you pay for. If you are happy with semi-synthetic then so be it. I personally have used 5w40 fully synthetic for many years with total satisfaction and have adjusted the service interval to match driving pattern. As I am now retired I am hardly on the road these days so it is a once a year chore for me.

Happy motoring.

bought semi yesterday. i

bought semi yesterday. i intend to change the oil twice a year regardless of mileage. i have read that the older engines need more TLC to keep them going and i know from my bike experience that regular oil change never hurt.
as to driving conditions:-
new driver (5 months)= inexperienced, over revving etc.
i put 5,000 annual mileage on my insurance as my main mode of transport is my motorcycle (10 years)

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I use FSO

I always use Fully synthetic in my Sirion Rally 2 as recommended by my mechanic. The engine is frequently used at high revs so why not use the best? As it has such a small sump I also change the oil every 6 months. Its not really expensive. Yet another advantage of driving one of these little beauties!!

not frequently revving high.

not frequently revving high. i am still learning and now and then i do sammat wrong and engine revs up. i do try and drive in a higher gear so engine isnt revving too high.

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