Hi all, I've done some reading, but haven't quite figured this out yet. I have an 01 Sentra with 50k on it. I switched to synthetic last year with no issues. It's a bit hard to keep up on what is a true synthetic and what is not, but what I really want to know is if it matters where mixing of synthetic types is concerned.
I've read that a true synthetic should not be mixed with mineral, but what about a true synthetic with other synthetics that might be a blend or a different group number?
On car bible it implied that Mobil1 may not be suitable for mixing because it was derived from something different than the others. I don't know how old that page is though and I know that Mobil1 now isn't a true synthetic, but I don't know if it was when I bought it.
Should I have done a flush before I switched? I always research and at the time the info I found seemed to indicate I didn't have to since I had low mileage and the car was well maintained.
I have Valvoline Synthetic in their now. I believe Synpower.
Thanks
I've read that a true synthetic should not be mixed with mineral, but what about a true synthetic with other synthetics that might be a blend or a different group number?
On car bible it implied that Mobil1 may not be suitable for mixing because it was derived from something different than the others. I don't know how old that page is though and I know that Mobil1 now isn't a true synthetic, but I don't know if it was when I bought it.
Should I have done a flush before I switched? I always research and at the time the info I found seemed to indicate I didn't have to since I had low mileage and the car was well maintained.
I have Valvoline Synthetic in their now. I believe Synpower.
Thanks