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I thought I read here (sometime back) that if the bottle has a W on the bottom, then Warren made the oil. Recently I had a question about Super Tech (Air compressor) oil and couldn't get an answer from W-M. The bottle had a W on the bottom, so I emailed my question to the Warren company. Their...

I just bought the 10 gallon oil type air compressor from the Harbor Freight catalog. The manuel says to use "30W Compressor oil". Is there a difference between "compressor oil" and Motor oil? If not, should I use straight SAE30 or 10w-30 ? Any advantage/disadvantage to using synthetic? Thanksin...

My wife bought a cupon book from a local auto dealership that offers several "free" services. Oil changes, tire balancing/rotation and a radiator flush. However the radiator flush isn't exactly "free". We have to pay for the chemical used and the fresh coolant added. A cost of approx $30. My...

I decided to use synthetic oil in my high milage '88 Ford F-150 (3.9 striaght 6 w/5sp OD). Had been using Penssoil 10W-30. Went to Wal Mart Supertech 10W-30 Synthetic. THe engine has been well maintained, but had begun to use some oil w/the Pensoil. I figure it might use a liitle more w/the...

My '88 F-150 w/4.9 FI-6 has about 160K miles on it. I've been using Pensoil 10W-30 and I'm thinking of switching to a synthetic oil. Probably Wal Mart Super Tech for the price. Is this ok for a high milage engine. Thanks.

We have a '92 Olds Bravada w/over 200K miles on a V-6 engine. We have kept the engine fairly well maintained w/reglar oll changes and it has had no major problems and uses very little oil. However I have noticed that the oil becomes very dirty looking in a short time after an oil change. I...

As stated, I am new to the forum. I have an '88 Ford F-150 w/the 4.9 straight 6 engine. It has 133K miles on it and still runs very strong. I bought it at about 119K and believe the truck/engine was well cared for beforehand. When I bought it, it had a sticker on the windshield indicating that...