engine oil

Reply

  #1  
Old 04-07-02, 08:31 PM
mdhaque
Visiting Guest
Posts: n/a
engine oil

My car is Dodge Dynasty, 91, 2.5 lit 4 cyl

I just realized that I have used 10W 40 engine oil in my car. I intended to use 10W30. Is there any big difference between 10W30 and 10W40? Will my car be ok? or I should change the oil again?

Thanks

Aman
 
Sponsored Links
  #2  
Old 04-07-02, 08:34 PM
Billdo49er
Visiting Guest
Posts: n/a
It's only a slightly thicker oil and may not be a problem.
 
  #3  
Old 04-08-02, 05:57 AM
Joe_F
Visiting Guest
Posts: n/a
I agree with Bill. It's ok this time around, but go with the recommended grade for the next change.
 
  #4  
Old 04-09-02, 11:26 AM
Dan Meyer
Visiting Guest
Posts: n/a
10w40 vs 10w30

10w40 is thicker (higher viscosity) than 10w30. A higher viscosity oil has greater film strength (what is called "boundry lubrication), therefore, it will prevent wear better. But it also creates greater friction and therefore, lower gas mileage (that's why car manufacturers recommend lower vis. oil to meet CAFE rules). Heat thins out oil so I use 10w40 in the summer for better engine protection. Cold temp. thickens oil so I use 10w30 or 5w20 in the winter for easier starting.
 
  #5  
Old 04-09-02, 12:30 PM
Joe_F
Visiting Guest
Posts: n/a
Thicker oil is also good for older cars which might normally leak or burn thinner oil.

Since my 84 Olds is older now, I run 10W40 in it year round. It doesn't really use any better changes. A few spots of speepage here and there, but nothing to write home about.
 
Reply


Thread Tools
Search this Thread
Display Modes
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -7. The time now is 01:28 AM.