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When you add it to your motor oil, can you run it for 5000 miles or do you add it and let your engine run for 10-20 minutes and then change it out?? Thanks
from what i've read on this site, and another, you'll hear:
1) don't put it in your crankcase! it will break sludge free and kill your motor
2) put the whole bottle in (but don't overfill), let it idle, then change the oil/filter
3) follow the directions, 1.5 oz per quart of oil, but don't overfill, and run your usual OCI (and although it doesn't say on the Seafoam can, you'll hear others say 500-3000 miles, then change)
I just added about 12 oz to my 4 qt (one quart low) system in my 92 Galant 2.0 SOHC and then topped off with ST dino...going to run it about 400 miles this week, then change her with MaxLife 5W-30 and a ST filter.
Then again, this OCI, i've gone additive CRAZY. a bottle of slob and about one quart MMO (I kept adding the 6 oz bottles whenever she'd burn it off and get low on the dipstick)
however, in my 2001 F150, I'm using quality oil (although I haven't settled on one brand....Q-power 4x4 full synthetic next and then most likely back to MC 5W-20 blend) and have never added anything to the oil.
soooo, after all that, i'm sure you're even more confused.
sorry for the long post.
Last edited by rsylvstr; Feb 19, 2007 at 04:40 PM.
Except that my 2000 XP owner's manual says in big bold letters: Never use an oil additive for cleaning deposits. Damage may occur.
This is technically correct. The reason Ford tells you NOT to do this is because dragging it into the crankcase OR the brake booster (valve cover/valves) is because it dilutes the viscosity (lubricative properties) of the oil. Putting it into your gas tank is fine, but I have never been convinced that diluting your engine oil on purpose for whatever short timeframe it is - even for a second - can protect your wear surfaces (bearings, etc.). I confirmed this during a call to Ford engineers two months ago. Some folks on this forum still stand by the practice, and to those folks, well...to each their own. Not for me. However, it does clean the injectors well. About every three months I'll run a bottle in a full tank on a trip. The truck runs great as a result. Just my $.02. Good luck.