Ive been reading a lot about this infamous oil questions everyone has at least once in life lol. Well here is my case
The car: Ford focus svt, 2.0L Zetec, which is NOT longer stock. Now it has low compression (8.7-1 compare to 10.2-1 stock) forged internals and it is turbocharged (something like a t3/t04E 50 trim turbo), revs to 7200rpm, 12psi of boost.
The use: Daily driver with some spirited driving every now and then, I'd say 40% of the time, I average 35 miles a day. 55% city, 45% highway.
The weather: I live in the desert, when its been hot outside we have hit 120F many times, 110-115F are normal during spring-summer, during winter, the coldest I remember was 28F, and that was very rare, most likely to see 36F.
My tuner suggested me to go synthetic, 40 weight during winter and 50 weight during summer. I went asking around i found out other turbo shop use what the non-svt zetec uses but synthetic (5w20), both for daily driving and track, if daily driving, they suggest 5000 mile OCI, if racing only, they suggest changing after every road race.
Since the car is not stock i cant follow any recommendation from dealers, or other sources of info that are about the car but naturally aspirated, everything is very confusing, some say I can damage the oil pump using what im using (5w50 castrol edge and motorcraft fl400s oil filter) and should use what i used before 10w40 when stock, others like my mechanic, my tuner, and other friends suggest keeping the 50 weight all year round. What do you guys think?
sorry if its one of those typical questions, but i searched and couldnt find someone with a similar case.
The car: Ford focus svt, 2.0L Zetec, which is NOT longer stock. Now it has low compression (8.7-1 compare to 10.2-1 stock) forged internals and it is turbocharged (something like a t3/t04E 50 trim turbo), revs to 7200rpm, 12psi of boost.
The use: Daily driver with some spirited driving every now and then, I'd say 40% of the time, I average 35 miles a day. 55% city, 45% highway.
The weather: I live in the desert, when its been hot outside we have hit 120F many times, 110-115F are normal during spring-summer, during winter, the coldest I remember was 28F, and that was very rare, most likely to see 36F.
My tuner suggested me to go synthetic, 40 weight during winter and 50 weight during summer. I went asking around i found out other turbo shop use what the non-svt zetec uses but synthetic (5w20), both for daily driving and track, if daily driving, they suggest 5000 mile OCI, if racing only, they suggest changing after every road race.
Since the car is not stock i cant follow any recommendation from dealers, or other sources of info that are about the car but naturally aspirated, everything is very confusing, some say I can damage the oil pump using what im using (5w50 castrol edge and motorcraft fl400s oil filter) and should use what i used before 10w40 when stock, others like my mechanic, my tuner, and other friends suggest keeping the 50 weight all year round. What do you guys think?
sorry if its one of those typical questions, but i searched and couldnt find someone with a similar case.
