Automotive Forums .com - the leading automotive community online! Automotive Forums .com - the leading automotive community online!
Automotive Forums .com - the leading automotive community online! 
-
Latest | 0 Rplys
Go Back   Automotive Forums .com Car Chat > Engineering/Technical
Engineering/Technical Ask technical questions about cars. Do you know how a car engine works?
Reply Show Printable Version Show Printable Version | Email this Page Email this Page | Subscription Subscribe to this Thread
 
Thread Tools Search this Thread
Old 01-28-2002, 08:21 PM   #1
Rich
Never Fear, Rich is here!
 
Rich's Avatar
 
Join Date: Apr 2001
Location: Thunder Bay
Posts: 2,663
Thanks: 0
Thanked 0 Times in 0 Posts
Send a message via MSN to Rich
The Mixing Of Oils.

Hey!

I am currently running Valvoline 5w30 in my car. The engine has some internal modifications but is getting very close to a rebuild. I have a very small amount of oil loss due to some minor valve train problems. Rebuild will be coming in April / May. Anyways, I need to top-up the oil every once in a while. The other day, I noticed it was a bit low and asked my mom to grab me a quart from the mall since she was going out. She bought synthetic by mistake and I came within inches of pouring it into the engine, before I noticed that it was synthetic.

My question is, would there be any damage to the engine if I had ran a mix of synthetic and the normal 5w30 in there?

Would it make a difference if the engine has modified internals like mine (cam,crank)?

Im hoping that the problem never arises, but it would be nice to know.

Thanks
--Rich
__________________
[size="1"]My Wheels
05 Dodge Magnum SXT
93 GMC Pickup
Rich is offline   Reply With Quote
Old 01-28-2002, 10:40 PM   #2
texan
Writer Mod
 
texan's Avatar
 
Join Date: Jan 2001
Posts: 714
Thanks: 0
Thanked 0 Times in 0 Posts
Nope, it shouldn't cause any problems. Granted you'll have a little bit of the superior stuff mixed in with the garbage , but that's just something you'll have to live with. It is highly recommended that your oil be homogenous if possible, so in the future I recommend using the synthetic only for engine oiling duties. Especially after the rebuild, which I assume is a performance minded one .
__________________
'03 Corvette Z06
'99 Prelude SH
texan is offline   Reply With Quote
Old 01-29-2002, 11:30 AM   #3
Polygon
The Red Baron
 
Polygon's Avatar
 
Join Date: Oct 2001
Location: Alpine, Utah
Posts: 7,820
Thanks: 1
Thanked 2 Times in 2 Posts
Send a message via MSN to Polygon Send a message via Skype™ to Polygon
I would agree, Texan hit the nail right on the head. But he doesn't need me to tell him that.
__________________
Clint ~ 1989 LeBaron GTC TII | 1991 Stealth R/T TT | 2005 Neon SRT-4
Polygon is offline   Reply With Quote
Old 01-30-2002, 04:09 AM   #4
GTStang
Stang Guy
 
GTStang's Avatar
 
Join Date: Jan 2002
Posts: 4,189
Thanks: 0
Thanked 0 Times in 0 Posts
Send a message via AIM to GTStang
I agree just noting that after thr rebuild you should use non-synthetic oil during the break in process. This is very important ask any quality engine builder
GTStang is offline   Reply With Quote
 
Similar Threads
Thread Thread Starter Forum Replies Last Post
Oil Pressure 130 Pounds Smith1000 Park Avenue 10 04-18-2011 08:39 PM

Reply

POST REPLY TO THIS THREAD


Bookmarks
Go Back   Automotive Forums .com Car Chat > Engineering/Technical

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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



All times are GMT -5. The time now is 03:03 AM.

Community Participation Guidelines | How to use your User Control Panel

Powered by: vBulletin | Copyright Jelsoft Enterprises Ltd.
 
 
no new posts