Originally Posted By: Akiba
i'm planing to check out RL 5w-30 for a car that doesn't need such a great oil

figure since 1 gallon is 4 qts i'll mix 1 gallon of RL with say 1 qt of castrol gtx. i have 5 qts of gtx laying around and that would be a good way to use it up. i don't think that would be a issue anyways ...
oh look i'm quoting my self. ok so i got my case of 12qt red line 5w-30 in and jumped on my oil change. while out in my shop i notice a few bottles of oil already laying around and didn't want to waste.
1qt of gtx 10w-30 2005,
1qt of gtx 10w-30 2007,
1qt of mobile-1 5w-30 2009,
4oz of mobile drive clean 5w-30 2009,
2qt of red line 5w-30 2010.
yeah that's a crazed mix. like i said no need to throw out new (aged lol) oil.
so what have i notice thus far? i've only notice and what was the real goal of using red line? START UP NOISE! really ever since i dumped out my factory fill back in 2007 my car always has a 1 to 2 min start up noise that just drives me nuts. none of the oils i've tried such as gtx, pyb, pp, m1 done anything about the noise. well with 2qt of red line in my car there is no start up noise and with that i'm happy and will stick with red line. can't wait for 5000 miles so my next fill is 5qt red line.