Can any one tell me if i use 10/40 semi oil would i have any probs the engine.

you want 5w/30 I would not use 40. Silvertops will have problems with the hydraulic lifters.

The best oil i find is fords own 5w30 semi.

It will rattle with 10w40. Especially a silver top as wasa says.

I use 5W30 in my zetec 1800 (full synth).

Happy with it...

5w/30 Havoline fully synthetic 17 quid for 5 litres from Morrisons petrol stations.

Put 10/40 in and you will be listening to the big ends knocking and top end rattling in no time.

Dont do it, put the prescribed Ford 5/30 in it as said above.

I use 5W30 in my zetec 1800 (full synth).

Happy with it... ===============================================================================



I used 5w30 and my engine cooked it .
Lost oil pressure when giving it the "Berries".
Changed to Millers 5w50 fully synthetic and never had a problem since.

Thanks for your advice i have got 5/30 semi as i norm put it. I only was going to put it in becouse i had it laying around and i saw on one forum you can use it on high mileage zetecs. Its amazing how clean good oil is crucial on zetecs when i first built mine years ago i used crappy car lube and it used to have a very slight rattle when cold but soon as i changed it for ford oil it was fine. I used to have a mondeo and when the oil got crappy it used to run and idle rubbish.

5/30w zetec oil I use in my 1800 westy
As said 10/40w and you will hear her rattle

Hi.

Been using valvoline semi 10/40 for the last 7 years. never a problem revving to 8k. with 5/30 the hydrualics tappets give up.

Cheers Matt