Right Oil For Peugeot Expert

[madonna-fan]

Hi there,
does anyone know what is the correct oil for the above mentioned van.
the user manual says 10w 30,5w 30 5w 40, my friend uses 15w 30 semi synthetic in his??? please help

[DTCwordfan]

what age is the car......5W with 40 is total overkill for our climate....a 15W 30 will be fine.....the synthetic question depends on the age.

[DTCwordfan]

annual mileage as well and which part of the country?

[DTCwordfan]

and diesel or petrol?

[Gavmacp]

Dtc,
What does it mean such as 5w 40?

[madonna-fan]

the van is from 2000, diesel and im in south wales,
thanks

[DTCwordfan]

then I would go for the 15w40, madonna, as you have a little more load on the engine zooming up and down those hills of yours. I wouldn't mess around, Shell's diesel oils are by far the best on the market - they have over 40% share of the diesel vehicle market in the countries in which they operate in - I wonder why......performance.

Gav, what is on measure here is the point at which the lubricant gels out in cold weather and cold start and the second number the upper point at which it vapourises and is no good. It's all about the ability of the oil to hold its viscosity during different engine temperatures.....

As a rule of thumb, 15 W is good down to about -20 degrees C (-25 pumping) 10W to - 25, 0W to -35 (real Arctic conditions). On the upper end, 40 coincidentally is 40C, so that gives plenty of coverage for an engine running hot in the UK summer.....

I'm being a bit simplistic here as to the engineering but hopefully you get the gist.

[DTCwordfan]

oh and a semi synthetic is a little bit of overkill - a standard Shell Helix Diesel will do fine as the oil is a bit thicker and won't risk much seepage from the engine sump.....

[DTCwordfan]

http://i66.tinypic.com/8xvwx2.jpg

[DTCwordfan]

well when it comes to diesel oils I'll agree to disagree and yes the seal would be knackered...but a semi-syn is usually thinner than a mineral baseoil and more prone to finding its way out.

[DTCwordfan]

not to an amateur.....and somewhat a precocious comment to make.

[Gavmacp]

Thank you DTC!

[DTCwordfan]

It doesn't cover greases either...... ;-)

[MantaRay]

In view of the manual's advice I'd opt for a 5w or 10w spec.

[DTCwordfan]

there speaks the non-specialist.....