Changing oil grade

1. OMGASAXO Established Member Joined: Dec 2011 Derby Posts: 1021 Posi saxo, flatty, Peugeot bipper, Vauxhall vectra

   #1 18th August 2015, 14:49

   So I got a car which the manufacturer recommends 5w30. The previous owner has been using 10w40, took it to garage and they've used 5w40... How bad is it to change oil grades? Could it cause damage as I've herd switching from semi synthetic to full synthetic can cause problems ? Thanks
2. Gandi699 Saxperience Post Whore Joined: Apr 2011 Posts: 9100 Amazon green VTR 16v, Inferno RS clio 182

   #2 18th August 2015, 15:47

   stick to the right grade by climate for your country ie: if its 5w30 for UK climate stick to that. Oil is cheap enough so just drop it out and fill with new correct grade with a filter change
3. oilman Established Member Joined: Feb 2005 Truro United Kingdom (England) Posts: 1229

   #3 19th August 2015, 10:49

   Hi
   
   What car is it? Certain cars are designed to run on many oil grades, others are more fussy.
   
   Cheers
   
   Tim
4. OMGASAXO Established Member Joined: Dec 2011 Derby Posts: 1021 Posi saxo, flatty, Peugeot bipper, Vauxhall vectra

   #4 19th August 2015, 17:47

   It's a Vauxhall vectra c 2.2 petrol 16v
   
   I was just wondering can any damage be done swapping from 10w40fully syn to 5w30 semi synthetic? Or viceaversa? Tbh I don't know what it's been running on in the past...
5. oilman Established Member Joined: Feb 2005 Truro United Kingdom (England) Posts: 1229

   #5 20th August 2015, 07:56

   Hi
   
   Those engines can use a 0w-30, 5w-30, 0w-40 and 5w-40, as per the GM specs, a 10w-40 is also okay, although not approved. There is no issue in swapping between the grades.
   
   Cheers
   
   Tim

   1 user thanked this post: OMGASAXO
6. OMGASAXO Established Member Joined: Dec 2011 Derby Posts: 1021 Posi saxo, flatty, Peugeot bipper, Vauxhall vectra

   #6 20th August 2015, 17:35

   Thanks guess I'll stick to 5w40