mixing viscosities ?
10-24-2012, 10:05 AM
#2
Drifting
Not sure why you would do this vs. just putting fresh oil in with the correct viscocity?
Oil isn't that expensive where I wouldn't recommend just putting fresh oil in.
Oil isn't that expensive where I wouldn't recommend just putting fresh oil in.
10-24-2012, 10:20 AM
#3
Melting Slicks
10w-40 lol!!! 
Seriously I have added 5W-30 to 15W-50 when I found that I was out of the other. I don't think it matters as long as you stay with the same brand and type. Just my .02 JD
Seriously I have added 5W-30 to 15W-50 when I found that I was out of the other. I don't think it matters as long as you stay with the same brand and type. Just my .02 JD
10-24-2012, 10:58 AM
#4
Le Mans Master
Gibbs Oil says this is fine to modify your viscosity.... At least with their oil.
Don't mix an oil with phosphorous like Gibbs and one with detergents.
Don't mix an oil with phosphorous like Gibbs and one with detergents.
10-24-2012, 07:27 PM
#5
the only spec ican think of off the top of my head of that you cant average out is the boiling point...
10-24-2012, 08:19 PM
#7
Pro
10-24-2012, 09:10 PM
#8
Drifting
Thread Starter
in the summer months here on the Texas Gulf Coast, i usually go with 15w50 cause of the 100F + ambients and 300 degree oil temps...when pressing hard. Now that its cooling off some I don't need the w50...and thought I'd go with the 50/50 noted above....seeing as I have lots of each on the shelf. Stock LS6 btw.
10-25-2012, 06:40 AM
#9
Race Director
Member Since: Sep 2004
Location: Cypress TX
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St. Jude Donor '07-'08-'09-'10-'11-'12-'13-'14-'15-'16-'17-'18
Hey Blair! You should be perfectly fine as long as you stay with the same brand/type of oil. I do the same thing.
See you on the track Friday at the TWS open track day.
Bill
See you on the track Friday at the TWS open track day.
Bill
10-26-2012, 03:42 PM
#10
I "feed and bleed". Start year with 5W30. Add a qt before then bleed after each track day. In June as weather warms, the feed oil is a 40 weight of the same brand. Only 2 years of this but no issues yet.