Originally Posted By: steve20
the R in UPF48R is the racing (track) version of the Ultraguard Gold
They also make a UPF48--without the R
They don't make any ultraguard gold filters, the UPF48R is the only one left in production (and even that's in question). To my knowledge the line was discontinued quite some time ago. If you follow the old link to the product page it'll redirect you to their 'blue' professional filter line
http://www.acdelco.com/html/pi_filt_oil_gold_main.htm
anything left over for sale these days is NOS.
the R in UPF48R is the racing (track) version of the Ultraguard Gold
They also make a UPF48--without the R
They don't make any ultraguard gold filters, the UPF48R is the only one left in production (and even that's in question). To my knowledge the line was discontinued quite some time ago. If you follow the old link to the product page it'll redirect you to their 'blue' professional filter line
http://www.acdelco.com/html/pi_filt_oil_gold_main.htm
anything left over for sale these days is NOS.
Last edited: