My neighbor's wife asked me an oil-related question today that I have absolutely no answer for, and I was hoping that the experts here could shed some light on this issue.
Her husband uses Redline 10W30 in his '99 LS1/6spd Vette that he rarely drives during the winter (~ 1500 miles between Nov & March). Each spring he'll drain the oil from the Vette, put it (along with a new filter) into his wife's S-10 (4.3L/auto), and put fresh RL & filter in the Vette. When she asked him about it, he told her that "since RL oil is good for 6-7k miles, it would be a waste of money not to use it and that 2000 mile RL is better for her car than new Pennzoil".
So anyway, she comes over this morning asking me if it will hurt her engine, and, if I've ever heard of somebody else doing this? I don't know how to answer her. I've never heard of it, but:
On the 1 hand, RL makes a good synthetic oil and at only 1500 miles, there should be at least another 3-4k miles worth of life left in it.
OTOH, this oil has been in his car for nearly 5 months and even though he brings his car to operating temp every 2 weeks or so, it's still almost 5 months old.
I've gone back & forth on this all day so it's time to ask the experts: Do YOU see anything wrong with putting 1500 mile, 5 month old synthetic oil into another car?
TIA.
Nick
Her husband uses Redline 10W30 in his '99 LS1/6spd Vette that he rarely drives during the winter (~ 1500 miles between Nov & March). Each spring he'll drain the oil from the Vette, put it (along with a new filter) into his wife's S-10 (4.3L/auto), and put fresh RL & filter in the Vette. When she asked him about it, he told her that "since RL oil is good for 6-7k miles, it would be a waste of money not to use it and that 2000 mile RL is better for her car than new Pennzoil".
So anyway, she comes over this morning asking me if it will hurt her engine, and, if I've ever heard of somebody else doing this? I don't know how to answer her. I've never heard of it, but:
On the 1 hand, RL makes a good synthetic oil and at only 1500 miles, there should be at least another 3-4k miles worth of life left in it.
OTOH, this oil has been in his car for nearly 5 months and even though he brings his car to operating temp every 2 weeks or so, it's still almost 5 months old.
I've gone back & forth on this all day so it's time to ask the experts: Do YOU see anything wrong with putting 1500 mile, 5 month old synthetic oil into another car?
TIA.
Nick