ive been considering going to full synthetics in my 2000 R/T but with almost 208,000 miles im very scared to switch due to chasing down oil leaks. I dont have the time, nor money to start replacing seals and gaskets as i will be moving to Tennessee soon and im working all the hours i can to get as much money saved as possible, what would u guys do? right now its running 10w-30 valvoline high milage.

 

why change now if you are gonna be moving and working like crazy? I would just stay and do it later down the road personally. I am still trying to find the last leak I have when I switched...

 

+1. At this point, there is no reason to switch. Change your dino oil every 3000 miles and call it a day.

IndyDurango

 

I made the switch at about 200k miles and my front crank seal started leaking kind of bad... I drained the oil, fixed the seal and now I use Mobil Super High Mileage and Mobil 1 filter. Never had a problem with it and it's supposed to be good for high mileage vehicles( hence the name)

 

I am running a personal experiment on my Rango since I am the original owner and drove it off the lot brand new. I ran the original dino oil in it for 500 miles, then switched to Syn oil (whatever happened to be on sale) and have been running it that way ever since. No leaks nor engine issues so far. I want to know if Syn oil really makes any difference. As of now, I am running 2K more miles than I have ever had on any vehicle and the engine is running strong but suspension and drive train part replacements are looming on the horizon for me.

Having said that after seeing what other owners are doing on this site, I am now convinced that religious oil changing is far more important than oil type even though I have also switched my vehicles to Mobile 1 High Mileage Syn and Mobil filters for reasons of simplicity.

 

We have a 99 tahoe with 207k and my dad 93 chevy 1500 with 315k (both 350's) that have had valvoline dino oil. Neither have needed or even warranted an overhaul or major work. Changed every 3k.

 

It could be too late to do it without any consequences but you can do the change and hope that if there are any leaks that you find them and fix them to avoid further leaks.

 

I think I'm gonna stay with my valvoline dino oil for now. I do plan too rebuild my motor after the move anyway that's when ill switch. Thanks for the input!

 

I'd stay with the fossil based oil ( because of your high mileage notch it up to 10w40w Valvoline High Mileage Max Life in the winter and the 20w50w version in the hot tennesse summer---and call it a day.) If you aren't knocking or smoking yet let it be...kingoftow