MTLbroker

Just did another oil change at the dealer. I never really checked before but I just looked at the work order. They put 5W-20 semi-synthetic oil in the car. Not bad considering they didn't charge me more than for a regular oil change.

RX8_Ownz

semi-synthetic? I've heard you should not put a synthetic oil in rx-8.

ezrider55

I've herd that in order to make an oil 5w20 it must be partialy synthetic. :D

_JL

I was told non-synthetic only.

StealthTL

iTrader: (1)

The manual will tell you much, Grasshopper!

S

MTLbroker

With all the confusion about oil, I only get the car serviced at authorized Mazda dealer. I don't care if they put mud in the car, something goes wrong, they owe me.

red_rx8_red_int

My first couple of oil changes, the dealer used 10w30. I had read the threads here about how the computer wouldn't allow the tech to code in 5w20, but the dealers were swearing they were using 5w20. So I paid the receipt no mind. My last change I asked the guy and he said yea they do put in 10w30 that's what the dealer recommends. So I ask about using 5w20 and the guy said it will cost more. I replied that I get the free maintainence, he said he would check with the service advisor and came back and said it's covered. I'm sorry but I don't understand how a Mazda dealer can go against the owner's manual?

saki

With all due respect you need to determine what weight of oil the 8 gets, then make sure the techs put it in. Leaving it up to chance is too risky.

Mag66

At my Dealer, the computer had the same problem.. it would only show 5w/30 and not 5w/20.. but to put my mind totally at ease.. the senior tech took me to the garage and showed me the special 'barrels' of 5W/20 they have especially for the '8'.... and said he wouldn't allow them to use anything else as it was a directive from Mazda that they must use 5w/20 and nothing else.

I stood there and watched them 'fill her up' from these 'barrels' and so I have no issue with the printout saying something different to what they actually use!