what type of engine oil do you guys use in winter time in your j30?

[infinitiboyj30]

i live in chicago and its winter time here and i use mobil clean high mileage 5w-30 my car has 110k miles its a 1993. is it ok to use 5w-30 if temps reach up to 50f? i dunno for some krazy reason we hit 62f today in chicago and just last week it was below zero and week before i went with 5w-30 but now since the temps are gonna stay between 40s-50s what do u guys think? should i replace the oil with 10w?
Modified by infinitiboyj30 at 7:15 PM 2/7/2009

[Victor]

I use whatever is on sale that meets manufactures specs, which is just about any name brand oil. Right now I am using Mobil 1 extended life synthetic, but only because I got it on sale really cheap with a rebate.

[driverdriver]

Mobil 1 synthetic +1

It's the only oil I trust in all of my rides (and snowthrower).

[j30t_Dan]

Castrol Synthetic

Please only use synthetic, your engine will thank you

[kbflip02]

i live in chicago and its winter time here and i use mobil clean high mileage 5w-30 my car has 110k miles its a 1993. is it ok to use 5w-30 if temps reach up to 50f? i dunno for some krazy reason we hit 62f today in chicago and just last week it was below zero and week before i went with 5w-30 but now since the temps are gonna stay between 40s-50s what do u guys think? should i replace the oil with 10w?

Modified by infinitiboyj30 at 7:15 PM 2/7/2009

i agree only run synthetic...and dont switch bacn and forth between regular and synthetic...i run royal purple 10-30....its expensive but IMHO its worked the best for me so far...

[infinitiboyj30]

i agree only run synthetic...and dont switch bacn and forth between regular and synthetic...i run royal purple 10-30....its expensive but IMHO its worked the best for me so far...

what do u run in your car when its winter? 5w-30?

[driverdriver]

Castrol Synthetic

Please only use synthetic, your engine will thank you

I don't know about the US, but up here in Canada, Castrol synthetic isn't really synthetic but a synthetic blend of dino oil and synthetic under the Castol marketing word "Syntec". There was a great big controversy about it around 1999-2000, CBC Marketplace even had a piece about it. Through some legal mumbo jumbo, Castrol markets and prices it as a 'synthetic' but its really not a true synthetic oil. It prompted me to abandon Castrol "synthetic" and move to a true synthetic oil-Mobil 1 Synthetic when I first heard about the controversy. A number of high end euro car manufacturers/dealers where the engine oil can only be synthetic like Audi, Saab, Porsche, Volvo and BMW ended up severing ties with Castrol Canada.

[j30t_Dan]

bu

I don't know about the US, but up here in Canada, Castrol synthetic isn't really synthetic but a synthetic blend of dino oil and synthetic under the Castol marketing word "Syntec". There was a great big controversy about it around 1999-2000, CBC Marketplace even had a piece about it. Through some legal mumbo jumbo, Castrol markets and prices it as a 'synthetic' but its really not a true synthetic oil. It prompted me to abandon Castrol "synthetic" and move to a true synthetic oil-Mobil 1 Synthetic when I first heard about the controversy. A number of high end euro car manufacturers/dealers where the engine oil can only be synthetic like Audi, Saab, Porsche, Volvo and BMW ended up severing ties with Castrol Canada.

from what im told, this got remedied by castrol. They no longer run the mix