do you add anything to your oil doing oil changes

I don't know about 18-wheelers, but I've got a '97 Jimmy with over 225,000 miles on it, and I use Lucas Oil Stabilizer with every oil change, plus Lucas Fuel Treatment once a month. I'm hoping to get at least another 75,000 miles out of that motor, cause I hate buying another vehicle, and I definitely don't want to put another motor into the one I've got.

 

we are doing test with Chevron on about 4 different kinds of blends that they only give us colors on, we have no idea what the formula is. Have been doing for over 2 yrs now and our oil drain interval is at 70,000 miles right now and probably end of year we will put a couple out to 100,000 miles.

We have about 25 trucks in the test group and do oil samples every 10k to keep an eye on everything.

We add nothing to our oil.

 

I do mine every 30,000 got 550,000 you guys are waisting
your money doing every 10 to 15,000 ryder & penske do
theirs every 30,000 with no problems.

 

ever wonder why their trucks get premature rebuilds??

the oil is usually ok but its all the crap that accumulates in it.

best way to look at it is this, once the engine starts to use a little oil, its time to change it, not top it up.

 

I run a bypass filter. Got 1.2 milllion out of my engine before inframe. Never put anything but Rotella in it. If you want to see what Lucas does to your engine check out bobistheoilguy.com.

 

30,000+ is fine if all you do is pound the pavement at a neutered 62mph...

 

Oil life, If you check the oil every day, when it first starts using oil, that is it's 1/2 life, you can go twice that long.
Real life, an oil change is the cheapest overhaul you will not need. I have seen engines that worked very hard last well past 1.5 million miles, doing regular oil changes at 12,000 miles, the same units doing 20,000 mile changes get a million.
Those engine manufacturers that make these engines do not know anything, they have never listened to a truck driver, or spun that little plastic gear in the auto parts store.
I always wonder why when a customer comes in with a problem, In all my years never once saw a declaration that they used an additive.
I did see a transmission that was removed and dismantled and the Eaton rep denied the claim because the oil was to thick Lucas.
Oil is made to flow and splash and spray a certain amount, then some intellectually challenged person adds a thickener that changes the flow rate. Modern engines are oil cooled and need to flow freely not one engine manufacturer recommends any additive.
If you want to really help your engine, live longer add a spinner filter. Leave the synthetics for the arctic.
I worked on a Penski unit it was disgusting.

 

OOHHH oh. watch it, there are plenty on here who swear by synthetics, like I swear by Lucas. ready. aim .fire. I'm taking cover.

 

I change oil at 15,000 and add 1 gallon of lucas. Engine currently has 890,000 on it .

 

http://www.bobistheoilguy.com/

Good site about oil