BTW, are we suppose to replace the crush washer at the drain plug everytime we change oil? Had to do that with my last car. Well, it wasn't like a commandment, it was "recommended".
Uhh... huh huhh huhh. He said "rack".Originally posted by Moncha
Nice thing about changing the oil on a VX, no jack, ramps or rack!
I doubt they used synthetic at the factory. I also doubt the dealer uses synthetic. You don't have to use synthetic. It's not like your truck will fall apart and rott to pieces if you don't. It's a personal choice. Some people are willing to spend the money and accept the advertised claims while others aren't.Originally posted by Heraclid
My question is this - I'm not sure if my VX currently has synthetic in it or not. Any way to determine this? Guess I should just have it switched over to synthetic next time to play it safe, huh? Also not sure where to dispose of old oil - just take it to a Jiffy Lube or dealer and pay a disposal fee?
The whole idea beind synthetic is that it doesn't break down as quickly as the fossil stuff (longer molecular strands or something to that effect)... which allows one to go longer between oil changes. Since you can go longer, the higher cost of synthetic balances out over time.
It's been tested that oil, even the fossil stuff, can last over 7,500 miles under normal use conditions. That's probably why Isuzu has service set at 7,500 mile intervals. Most people (not just VX owners) perfer to shorten it to 5,000 mile intervals just to be safe. Plus it's a nice even base number to go by as opposed to 7,500. I've even known people with turbocharged cars who change their oil every 3,000 miles which makes sense because turbocharged cars are subject to greater temperature extremes. Supercharging may be a bit difference since they tend to run cooler than a turbo (at least the Eaton/Roots chargers do). Turbos can see well over 1,000 degrees and most turbos are cooled by oil, so you can imagine what that does to it.
I came across a site run by a Mitsubish Eclipse owner couple years ago. This guy tried all sorts of brands of synthetic and had oil analysis done on each one of them. Of all the synethics, the test results showed AMSoil to be the superior product. He rated Mobil 1 to be average. Keep in mind, though, the results between AMSoil and Mobil 1 weren't too far off. It's just that of all the results Mobil was in the middle of the pack. AMSoil does cost a bit more. But, like I said, it's a personal choice. It won't hurt the engine if you don't use synthetic... and it won't hurt (not counting your wallet) if you do use it.
IIRC, DragonBob or GrampaBob said AMSoil has a filter that fits right on to our engines and is twice the size of the stock filter. Cost is around $12 I think.