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Message started by Big Al on 02/13/19 at 05:29:07

Title: how much ZDDP additive to use?
Post by Big Al on 02/13/19 at 05:29:07

Getting ready to do my first oil change, got it all drained out, was waiting on the oil that came yesterday evening, finally. I went with Shell Rotella T6 synthetic, and got some Redline break in additive to bring up the ZDDP levels. How much Redline should I add, and should I add it to the full oil amount, or replace part of the oil with the additive?

Title: Re: how much ZDDP additive to use?
Post by batman on 02/13/19 at 06:44:22

Be careful, to much ZDDP can be as harmful as to little , and the oil you're using already contains enough for normal running. Adding extra is usually only needed if breaking in a new piston and ring set/cam, and that should be with normal (dino) oil for the first 1,500 miles. but if you want to boost the level I believe you only need to use 1/2 ounce added to your oil change . I've never used it myself but maybe others that have will chime in here if I'm mistaken.

Title: Re: how much ZDDP additive to use?
Post by Dave on 02/13/19 at 06:47:40

Now that we have confirmed the T6 has 1,200 ppm of zddp....there really is no need to add any ZDDP.

If you want to.....just add 1/2 oz. per oil change (1 oz. per gallon). That will bring you up to around 1,400 ppm - which is considered the safe maximum.

Title: Re: how much ZDDP additive to use?
Post by Big Al on 02/13/19 at 07:21:27

Thanks! I was just going by what I read here

http://suzukisavage.com/cgi-bin/YaBB.pl?num=1344471565

Looks like I've got enough Redline for a LOT of oil changes then!

Title: Re: how much ZDDP additive to use?
Post by Dave on 02/13/19 at 08:01:19

222F2625377177430 wrote:

Looks like I've got enough Redline for a LOT of oil changes then!

Yes, and unfortunately there is a whitish sludge that starts to settle out in the bottle as it ages. Dunno' what it is.....if I put the bottle in my ultrasonic cleaner with the heater on and get it hot, I can shake the bottle and get it back into solution....it is a pain in the but and I have stopped using it.

Title: Re: how much ZDDP additive to use?
Post by Gyrobob on 03/06/19 at 08:27:18

1F24293E2F23383E252D203F4C0 wrote:

[quote author=222F2625377177430 link=1550064547/0#3 date=1550071287]Looks like I've got enough Redline for a LOT of oil changes then!