Might be blasphemy here on BITOG but I know some of us have put less than ideal optimal oil in our cars.
Here's my worst so far.
I got a new tractor last year and it recommends the first two oil changes be done at 50 hour intervals. Being a good BITOGer I put it Rotella T6 5W40 after I dumped the factory fill as it was just before winter.
Then come spring its time to change the tractor oil again and the cars too. I did the tractor first and watched 8L of synthetic oil with 50 hours on it drain into a semi clean bucket and thought it was a bit of a waste...
I ended up pumping 4L of the used tractor oil into the Neon. It was fairly black but after several months it seems to be doing the job in the Neon. I'm going to run it all winter and then we'll see if the car is still on the road. I might treat it with a jug of PYB!
I'm sure someone has done worse than though...
Here's my worst so far.
I got a new tractor last year and it recommends the first two oil changes be done at 50 hour intervals. Being a good BITOGer I put it Rotella T6 5W40 after I dumped the factory fill as it was just before winter.
Then come spring its time to change the tractor oil again and the cars too. I did the tractor first and watched 8L of synthetic oil with 50 hours on it drain into a semi clean bucket and thought it was a bit of a waste...
I ended up pumping 4L of the used tractor oil into the Neon. It was fairly black but after several months it seems to be doing the job in the Neon. I'm going to run it all winter and then we'll see if the car is still on the road. I might treat it with a jug of PYB!
I'm sure someone has done worse than though...