oilchange trans and ????

yes I do. never had a problem over 1.4 mi miles. you may be right, though.

 

ooops, too late, I already did. After I delivered I realized I have some time to kill so I went to speedco and got an oil change and thought, what the heck, yeah throw in a gal of lucas. Its funny though, I told them to change out the fluids in the trans/transfer case and dif, but they forgot to do it, lol. Which I was told is a $300 expense, and yes they rec'm synt fluids.

I might if I still have the time tomorrow try and get those fluids changed, they say every 250K miles it should be done.

 

When you have your trans and rear's changed. Make them drain the old into a clean container, visually inspect it and drag a magnet through it. Half the reason to do it is to check for metal shavings, chunks, etc... which would let you know you might have a problem. Or if it's good and clean, no moisture or discoloration should give you some confidence. I don't see any point into running synthetic in the rears. 80/90 non-synthetic doesn't break down much, you can find rears with over a million miles, never been changed and oil is not thinned down. But whatever blows yer skirt up.

 

Good advice, thank you.

To be honest with you, this is the first truck I have owned and really cared about its' upkeep and maintainance.

I love it when people are standing listening to the engine telling me how its not even broken in yet at 380K and how I realistically should expect to get 1 - 1.2 million miles out of it.

So I consider how, with just a little expense, I might really do the truck some good.

I hope to, anyway

 

Keep in mind also, that the tranny and diff OEM's will extend warranty out to 750,000 miles when using full synthetics in those components. They recommend 500,000 mile drains for those units when using synthetics. I usually will do it at 300,000 miles. Just me. $300 is a good price to do all of them and using synthetic. Evidently the OEM's seem to think that using synthetics is a good thing. And there is solid evidence that using synthetics in those components will give an edge in fuel economy. Either way, just getting the automatic extended warranty and increased lube drain interval overides any additional cost to using synthetics.

Something that is not a bad idea. Get lube samples from all of the components when they are changed and send them into a sampling lab and have the used lube analyzed. There are several good labs around the country and you can get sample kits from them and send them in. Not expensive. Of course, a visual check when the lube is drained is a good idea.

For the engine, I side with the "thumbs down" on Lucas. It is nothing more than a 50w base oil with no additives per virgin oil samples that some folks have sent into various testing labs. Just use a good engine oil. Putting on a centrifuge like Spinner II or a bypass filter to help keep the engine oil cleaner is a good idea, whether you extend drains or not. That will keep a lot of soot out of the oil as well as other contaminates. It is a much better choice than dumping in some form of oil additive. Modern engine oils have everything you need.