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Originally Posted By: JohnnyO Originally Posted By: OceanRocket24 Thank you very much for posting a UOA for this car with the 3.8 liter engine. There are not many on here with that combination and since I own one I appreciated seeing the results. You're welcome. I get a UOA on this car once in...

Thank you very much for posting a UOA for this car with the 3.8 liter engine. There are not many on here with that combination and since I own one I appreciated seeing the results.

Originally Posted By: Towncivilian FWIW my Pathfinder (signature) has its original water pump and thermostat (as well as radiator, all coolant hoses and rad cap) at 126,460 mi with no issues. Flushed once (at dealer) and a recent drain & fill with Genuine Nissan coolant + distilled water only...

Originally Posted By: mechtech2 If you are going to drain it and replace the thermostat, reconsider a new water pump at this time. Yes, you may go 20-50k more miles or more with the old one. You'll feel and sleep better, and in the long run, save time. BTW, get the best thermostat that you can...

Originally Posted By: cjcride Originally Posted By: morris be sure and drill a 1/8 hole in the stat so it wont air lock. Do they not manufacture it with the airhole? Most high quality thermostats already have them. Also, for everyone's information, I am replacing the original parts with...

Thanks for the replies and advice. I just don't want to be one of those people who have car troubles because of a lack of maintenance. I think I am going to do the coolant and thermostat and wait until I NEED to do the water pump. Thanks again!

I have used QSUD for a while now with not one complaint. It is very stout and a good deal for an awesome oil! Use with complete peace of mind.

I have a 2000 Ford Mustang V6 with 109,000 miles on it. I was thinking it was about time to replace the water pump, thermostat and coolant since all these things are original when the car was built. I just wanted some input if it is a good idea to change these parts out, or if I am just wasting...

Hello forum posters!! I posted an oil recommendation a while back about racing an Acura Integra. Well, we moved up to a street stock class and I need a recommendation so that I know I am going in the right direction. The car is a 1974 Chevrolet Camaro with a stock 350 V8 engine and stock heads...

Picked up two oil changes for the Mustang!! SN too, very happy!

Originally Posted By: vinu_neuro Little late, but M1 0W-40 and 15W-50 are the oils ExxonMobil recommends in racing applications (apart from the dedicated racing oils). We know that many pro race teams use the 0W-40 in endurance racing, so 0W-40 would certainly be my pick. I can't find the link...

Originally Posted By: A_Harman If everybody else is running 20w50, you may be able to gain an advantage, however slight, by running 10w30. 5 minutes at 6500 rpm isn't very much. We test production engines for hundreds of hours at 6900 rpm with 5w20 where I work. If you can keep oil temperature...

Originally Posted By: flatlandtacoma Holy cow, good report. It looks like the oil didn't shear at all, and the TBN looks great. I agree with those that say 6.5k or even 8k miles should be easy. Thanks!! I am going to extend it to 6.5K which is what everyone is recommending!

Originally Posted By: jorton Is Ultimate Durability green bottle, or synthetic? The Ultimate Durability is Synthetic, the Advanced Durability is the Green Bottle.

Originally Posted By: Stemmy OceanRocket24, What do you mean that you learned it was not back spec'ed? The TSB shows the 3.8 Mustang under 5w20? Maybe I missed something, I'll take another look. I must admit that it's going to be tough for me to put that in when the oil fill cap reads 5w30...

I have a 2000 Ford Mustang with the same engine as yours. I saw the same set of information where Ford had re-spec'ed a lot of cars from a 5w-30 to a 5w-20. I learned however that our motors were NOT spec'ed back to a 5w-20 weight. Overall, I have heard great things about Pennzoil synthetic...

Thanks for all the comments guys. I am glad it came out well!

Hello everyone! This is an oil analysis for my 2000 Ford Mustang V6 automatic. I have owned this car since 87,500 miles and I wanted to see where I was at in terms of wear, so I didn't push the limits on the interval too much. On this interval, the car has seen about 35% city driving and 65%...

Originally Posted By: ThirdeYe Originally Posted By: OceanRocket24 The type of racing is on a 1/4 mile dirt track oval. The engine is a 1.8 liter engine in a 1990 Acura Integra. These cars are completely stock, but run about 5,500-6,800 RPM for the entire 5 mile race. I don't know about oil...

What is the iso-syn process of Chevron's motor oils? I purchased an oil deal at Autozone that included a 5 qt. jug of Chevron Supreme without the iso-syn label. What is the difference between a iso-syn labeled bottle of Chevron oil to a non-labeled bottle? Thank you very much for your time.