The message to which you are about to reply is shown first. GO TO REPLY FORM



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

Mixing different grades of motor oil 200 1991

posted by  doubleblue on  Thu Mar 3 06:38 CST 2005
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Fri Sep 26 11:19 CST 2008
[RELATED]

Hey everyone,

I'm a first-time poster but a long time reader. My family has owned one Volvo or another (all RWD) for many years and we do a lot of the routine maintenance ourselves so we're familiar with Volvo quirks and virtues. Currently we have a 1995 964 and a 1991 244.

My dad recently bought a case 20W-50 oil because he wrongly thinks that thicker is always better for our hot California weather. I'm gonna buy a case of 10W-30 oil, which I plan to either use straight or mix 50/50 with the heavier stuff. Both grades are Castrol GTX.

Would mixing the two grades yield a net viscosity rating of 15W-40, which is the heaviest recommended grade, or would it cause problems (sludge, leaking, etc.)?

Thanks.






USERNAME
Use "claim to be" below if you don't want to log in.
PASSWORD
I don't have an account. Sign me up.
CLAIM TO BE
Use only if you don't want to login (post anonymously).
ENTER CAPTCHA CODE
This is required for posting anonymously.
OPTIONS notify by email
Available only to user accounts.
SUBJECT
MODEL/YEAR
MESSAGE

DICTIONARY
LABEL(S) +
IMAGE URL *
[IMAGE LIBRARY (UPLOAD/SELECT)]

* = Field is optional.

+ = Enter space delimited labels for this post. An example entry: 240 muffler


©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.