Heres the thing. If I use 1 quart of Lucas along with some Valvoline Full Synthetic. The oil lasts alot longer, and can get through a full cycle. 5W-30
However, if I choose to run just the Full Synthetic, it chews through it in weeks.
I stopped using Lucas the past few months, because of the winter seasons. I am about to start using it again on the next oil change and through the summer.
Tested Oil Pressure today, and its more then adequate.
However, I can also say since getting rid of those crapy Bosch Platinum's, and switching to the NGK Plugs. The car seems to accelerate smoother, and the engine sound seems more throaty.
Hell the check engine light went out, no more misfire codes.
The Oil is still a mystery...
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