which oil for v70 2.4???

[wise old monkey]

its a 2006/7

[oilman]

Hi

You could try a 0w-30 A5/B5 as that will get moving a little quicker from stock. Another option is to forget the A5/B5 and go for an ester based 0w-30 or 5w-30 as the ester content will cling to the metals of the engine, so there is instant protection from cold. There aren't any A5/B5 ester oils though, but as yours is a T5 rather than D5, so doesn't have a DPF, you don't need it.

Cheers

Tim

[wise old monkey]

[QUOTE=oilman;2158199]Hi

You could try a 0w-30 A5/B5 as that will get moving a little quicker from stock. Another option is to forget the A5/B5 and go for an ester based 0w-30 or 5w-30 as the ester content will cling to the metals of the engine, so there is instant protection from cold. There aren't any A5/B5 ester oils though, but as yours is a T5 rather than D5, so doesn't have a DPF, you don't need it.

there is never any problem from cold, just when hot

[oilman]

Hi

Sorry, hectic day here. I read that earlier and then forgot about it. I think it's suffering from the oil draining down when hot, so go for an ester oil and that will cling to the metals preventing it all from draining out.

Cheers

Tim

[wise old monkey]

what do you mean by an ester oil

[oilman]

Hi

Ester based oils have a few advantages over normal oils.

1) They cling to metal surfaces, so the interior of your engine is coated with oil at all times, meaning instant cold start protection.
2) They reduce friction further than normal oils, leading to improved protection.
3) Esters make the oil more stable, making ester based oils ideal for hard use.
4) Due to the reduced friction, engines often run smoother and quieter.

There are a couple of disadvantages though

1) They aren't cheap.
2) They are designed as performance oils, so do not meet manufacturer specifications for longlife servicing or low emissions. They are generally fine for 10000 miles in a year though.

Here are the ester based oils that we have.

http://www.opieoils.co.uk/c-953-ester-synthetic.aspx

Cheers

Tim

[MMT5]

Originally Posted by wise old monkey

i have noticed once my engine is hot, i get a noisey start, like theres no oil in the engine, it rattles for a few seconds then goes quiet.
i use 5w 30 A5/B5 fully synthetic.

also i lose about a litre a month, i have no leaks or burning smell.

the car is on 154,000 miles a T5 and possibly very abused by police before i got it

I get the same with my 07 T5, that being a noise when hot, but only if ive left the car for 15 mins or so and only for a second. It sounds to me as though the vvt pulley is causing this dull rattle as I had the timing belt cover removed when testing this.

I also get a noise for around a second when cold starting as well which is undoutedly pressure build related.

Mines done 166500 miles.

One thing I will say is of all the cars I have owned which includes an S70 T5 and S40 T4 prior to this car this is the only one which has a ridiculously high cold start idle speed!

As a technician of over 25 years the golden rule was always dont rev a cold engine engine hard, yet Volvo obviously went against this.

The only thing I can think of is that the engineers wanted to get the engine up to temperature quickly.

[harveys]

Originally Posted by MMT5

As a technician of over 25 years the golden rule was always dont rev a cold engine engine hard, yet Volvo obviously went against this.

The only thing I can think of is that the engineers wanted to get the engine up to temperature quickly.

The high revs are to heat up the catalytic converter to working temp.

[MMT5]

Originally Posted by harveys

The high revs are to heat up the catalytic converter to working temp.

Still the highest cold start revs of any car I have owned.