A stupid question tbh lol

1. user_39542 Regular Poster Joined: Nov 2009 calne Posts: 429 137.7bhp Icelandic vts

   #1 27th September 2011, 01:01

   In terms of oil grades ie, 10w/ 40w
   
   
   What would be a thicker oil?
   
   Basically I need to put thicker gearbox oil in my car to quieten it down as I can't get my new gearbox till I get paid.
   
   
   It's not the release bearing before people start slating me lol,
   
   Just need a simple answer as I'm already decided on my method to fix my problem.
   
   Cheers
2. LSOfreak Saxperience Addict Joined: Jan 2008 west london Posts: 13810

   #2 27th September 2011, 01:07

   gearbox oil is like 80w something isnt it?
3. user_39542 Regular Poster Joined: Nov 2009 calne Posts: 429 137.7bhp Icelandic vts

   #3 27th September 2011, 02:05

   Yh I was just giving an example of the ratings of grades.
   
   All I need to know is say 5 / 40 w oil thicker than 10 / 40w oil? This is just for example
4. AdamH Saxperience Forum Bum Joined: Oct 2004 South Posts: 3638

   #4 27th September 2011, 10:42

   no 10w/40 is thicker.... the W stands for "winter" in other words the viscosity (thickness/resistance) when cold.
   
   Iirc citroens recommended gear oil is 75w/80, i wouldnt recommend putting in thicker oil..
   
   what exactly is your problem?

   1 user thanked this post: Renouf
5. tom_lloyd_4 Regular Poster Joined: Nov 2010 alton hampshire Posts: 348 97 mk1 vtr 85 LR 90

   #5 27th September 2011, 21:01

   have you checked that there is oil in your box? ep75/80 is wot your ment to use you could try ep80/90 boy youmay find that it stops the synchros working properley
   tom
6. user_18250 Established Member Joined: Sep 2007 Swadlincote Posts: 1185 2003 Black VTR

   #6 29th September 2011, 01:23

   Quote:

   Originally Posted by AdamH no 10w/40 is thicker.... the W stands for "winter" in other words the viscosity (thickness/resistance) when cold. Iirc citroens recommended gear oil is 75w/80, i wouldnt recommend putting in thicker oil.. what exactly is your problem?

   So expanding on this 5w/40 and 10w/40 are both exactly the same when upto temperature, the ten is just very slightly thicker when the engine is first started.
   
   and so 75W/80 which goes in the box means 75 at cold, 80 at hot.
   
   Etc. etc. etc.