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Hi. Are there any additives that would be good choices for aggressively attacking carbon buildup? I have some buildup on the piston crown visible through the plug wells and I imagine the valves probably don't look much better. It's tough to tell how thick it is from a top down view but on some...

I have three cars one of which takes 5w30. 2005 subaru LGT. My other two cards are Fords. 2014 mustang 5.0 and a 2009 focus 2.0 duratec. Both these cars have been on 5w20. The mustang for 14,000 miles and the focus for 64,000. Drivertrain warranty is expired or invalid on both. It is easier to...

I have a 2014 mustang. I recently removed the midpipe from the car and installed two oxygen sensor j style defoulers. The purpose of these devices is to pull the sensor out of the stream for emissions issues. https://www.summitracing.com/parts/vpe-11619 These defoulers have "jets" or pills...

2014 Mustang 5.0L VMP TVS supercharged I changed the oil on this car last March. Pennzoil Platinum Ultra. 5w20. The car made about 5 passes down the drag strip and probably a couple dozen WOT pulls outside of town on clear roads. I lost track of the mileage. I doubt it has been more than 6000...

I need about 5mm more clearance. Spokes clear the calipers OK the material needs to come off so that it can clear the bore of the wheel. The car is a 2014 mustang GT. Has anyone ever done this before? Typically about what is the max material you can take off before I need to be seriously...

I have called numerous places around town and the snap on guy is the only one I haven't reached yet. Nobody carries what I need here. http://www.drivetrainamerica.com/p-20657...CFSlgMgodHmoA3A I need a crow foot extension to torque these driveshaft bolts down at the transmission flange. There...

2014 5.0 mustang GT Car had factory fill drained in early June and replaced with 5w20 Pennzoil Ultra. Factory fill was 7 month old motorcraft synth blend with 1800 miles on it. Car will have about 5000 miles on it at most by the time it goes into reduced winter use sometime in November. So...

I've read on here before that it's fine to mix say PP and PU. But what about adding a third brand in there? Say the car wants 4.5 qts. So you put in 2 qts of PU. 2 qts. of PP. And half a quart of motorcraft synthetic blend. Keeping the same weight and viscosity. Is mixing the motorcraft in...

Hi Guys. I am going to be draining the factory fill soon on a mustang. Factory fill is motorcraft synth. blend 5w-20. I'm planning on going to 5w-30 but I am not sure what brand to choose. Pennzoil Platinum used to be great but I noticed they just switched to this new stuff made from natural...

About how many miles do you need to get on a car to start seeing sooty deposits from a small exhaust leak?

I have an 8.8 with 30K miles on it and very little abuse. Several months back I added a bottle of Ford friction modifier. The valvoline synthetic gear oil already had anti chatter additives. Last weekend for the first time I did a few burnouts on street tires. Seemed fine. Left two tracks. Next...

I searched but couldn't find a thread on this surprisingly. Can I flush old antifreeze mixture down the toilet/kitchen sink with a clear conscience? I know used oil needs to be taken in but what about this stuff?

OK this may be a stupid question. Or at least ignorant. I have polyurethane bushings and there is a zerk fitting there to grease them with. Is it enough to apply grease via the zerk or do I need to manually apply grease along the outside? Here is a photo to make it clear. Must grease be...

Is there any harm in adding a bottle of ford friction modifier to the differential? I have valvoline synth in there and it says it already has additives. Has anyone dumped extra modifier in there and had a problem because of it? Long story short - got a clunk out of the rear of my car when...

65000 miles, 2005 subaru legacy gt

Pennzoil Platinum 5W30 and 5W20 is the motor oil being used. 2005 subaru legacy gt and a 2009 ford focus are the vehicles. Both of these cars are driven 5000-6000 miles per year. I have been changing the oil/filter on these cars twice a year. Once in spring and once in the fall. OEM filters. I...

I have a supercharged car and was planning on going with a 90/10 mixture of distilled water and motorcraft gold coolant next spring for the intercooler. Intercooler and heat exchanger are aluminum. Now I've been doing some reading and am seeing all sorts of stuff about how running distilled...

I managed to slip the socket off and ding up one of my wheels in the lug well. I want to touch it up. Is it permissible to remove one lug while leaving the others still on then torque it back down? Or is that considered to be a no-no and if one comes off they must all come off?

Are grease guns and the fittings fairly standardized? I've got one of these: http://www.umiperformance.com/catalog/images/large/1062a_LRG.jpg Has a fitting you can see to hook up a grease gun. I'm thinking of buying these...

Going to be doing some suspension work and if possible would be nice to torque the fasteners back in to spec. I am however a bit confused here. I've heard that an extension bar will cause an overtorque situation if you don't compensate for it. But what about a swivel adapter? Does that affect...