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I have to export your AC Delco Car Wash Shampoo to Japan. Do you have an export classification (tariff) number available. The msds doesn’t list anything under #14 regarding IATA regulations, do you know if its regulated for shipping by air? Thank yo

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Different people will tell you one brand is better than another. All oil is the same to a certain point. After that, manufacturer’s try to make them better. They put their own blend of additives in to withstand heat better, clean, etc. So, pick the one you like.

As far as viscosity, stick with manufacturers recommended viscosity. The tolerances in engine bearings are a lot smaller than they used to be and a thicker oil could cause damage. Plus, it will void your warranty If it’s a new vehicle.

Matthew Vaughn

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There are a lot of variables at play here. What is the quality of the pads and rotors that you used. Did you even change the pads? What are your stopping habits? Is the truck empty or loaded? All this comes into play. Sometimes all at once. But probably the biggest thing is breaking habits. A ton of folks like to wait till the last possible second to apply their brakes and try to stop in ten feet. What they should be doing is gradually slowing by gently applying the brake. Give yourself a lot of room to stop. Your brakes and your wallet will thank you.

Matthew Vaughn

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I have tried many different brands and qualities with no luck. The car has done this since new and even the dealer said that there wasn’t anything they could do about it. please help

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You have a vent mode actuator with a bad diaphragm. Most people don’t fix
them if it involves removing the complete dash. If the one acting up can be
reached from underdash or with the glove box removed, the actuator is
probably available from AC Delco, an HVAC supplier or the dealer can order
one for you.

Jim O’Neill
Chino Autotech Inc.

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It sounds like you’re doing it. So long as you keep up with routine maintenance and be religious about it, there’s no reason why you can’t get many more miles out of that power train.

Matthew Vaughn

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